Home / 5,083.12-7,011.66-3,220.12

Finding the Fourth Proportional to 5,083.12, 7,011.66 and 3,220.12

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Solution

The fourth proportional to 5,083.12, 7,011.66 and 3,220.12 is: 4,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.12 : 7,011.66 = 3,220.12 : x
  2. Step 2: Convert to fraction form
    5,083.12/7,011.66 = 3,220.12/x
  3. Step 3: Cross multiply
    5,083.12x = 7,011.66 × 3,220.12
  4. Step 4: Simplify right side
    5,083.12x = 22,578,386.60
  5. Step 5: Solve for x
    x = 22,578,386.60/5,083.12
  6. Step 6: Final answer
    x = 4,441.84

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Half scale
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Double scale
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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.