Home / 3,565.20-4,921.92-2,149.14

Finding the Fourth Proportional to 3,565.20, 4,921.92 and 2,149.14

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Solution

The fourth proportional to 3,565.20, 4,921.92 and 2,149.14 is: 2,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.20 : 4,921.92 = 2,149.14 : x
  2. Step 2: Convert to fraction form
    3,565.20/4,921.92 = 2,149.14/x
  3. Step 3: Cross multiply
    3,565.20x = 4,921.92 × 2,149.14
  4. Step 4: Simplify right side
    3,565.20x = 10,577,913.61
  5. Step 5: Solve for x
    x = 10,577,913.61/3,565.20
  6. Step 6: Final answer
    x = 2,966.99

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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.