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Finding the Fourth Proportional to 2,805.66, 4,208.04 and 1,344.12

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Solution

The fourth proportional to 2,805.66, 4,208.04 and 1,344.12 is: 2,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.66 : 4,208.04 = 1,344.12 : x
  2. Step 2: Convert to fraction form
    2,805.66/4,208.04 = 1,344.12/x
  3. Step 3: Cross multiply
    2,805.66x = 4,208.04 × 1,344.12
  4. Step 4: Simplify right side
    2,805.66x = 5,656,110.72
  5. Step 5: Solve for x
    x = 5,656,110.72/2,805.66
  6. Step 6: Final answer
    x = 2,015.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.