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Finding the Fourth Proportional to 3,386.76, 4,675.02 and 2,208.12

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Solution

The fourth proportional to 3,386.76, 4,675.02 and 2,208.12 is: 3,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.76 : 4,675.02 = 2,208.12 : x
  2. Step 2: Convert to fraction form
    3,386.76/4,675.02 = 2,208.12/x
  3. Step 3: Cross multiply
    3,386.76x = 4,675.02 × 2,208.12
  4. Step 4: Simplify right side
    3,386.76x = 10,323,005.16
  5. Step 5: Solve for x
    x = 10,323,005.16/3,386.76
  6. Step 6: Final answer
    x = 3,048.05

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Find fourth proportional to 1,693.38, 2,337.51 and 1,104.06
Half scale
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Double scale
Find fourth proportional to 3,387.76, 4,676.40 and 2,209.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.