Home / 5,351.32-7,387.68-4,929.76

Finding the Fourth Proportional to 5,351.32, 7,387.68 and 4,929.76

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Solution

The fourth proportional to 5,351.32, 7,387.68 and 4,929.76 is: 6,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.32 : 7,387.68 = 4,929.76 : x
  2. Step 2: Convert to fraction form
    5,351.32/7,387.68 = 4,929.76/x
  3. Step 3: Cross multiply
    5,351.32x = 7,387.68 × 4,929.76
  4. Step 4: Simplify right side
    5,351.32x = 36,419,489.36
  5. Step 5: Solve for x
    x = 36,419,489.36/5,351.32
  6. Step 6: Final answer
    x = 6,805.70

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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.