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Finding the Fourth Proportional to 5,287.24, 7,929.24 and 3,654.28

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Solution

The fourth proportional to 5,287.24, 7,929.24 and 3,654.28 is: 5,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.24 : 7,929.24 = 3,654.28 : x
  2. Step 2: Convert to fraction form
    5,287.24/7,929.24 = 3,654.28/x
  3. Step 3: Cross multiply
    5,287.24x = 7,929.24 × 3,654.28
  4. Step 4: Simplify right side
    5,287.24x = 28,975,663.15
  5. Step 5: Solve for x
    x = 28,975,663.15/5,287.24
  6. Step 6: Final answer
    x = 5,480.30

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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.