Home / 4,031.91-5,565.90-2,689.75

Finding the Fourth Proportional to 4,031.91, 5,565.90 and 2,689.75

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Solution

The fourth proportional to 4,031.91, 5,565.90 and 2,689.75 is: 3,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,031.91 : 5,565.90 = 2,689.75 : x
  2. Step 2: Convert to fraction form
    4,031.91/5,565.90 = 2,689.75/x
  3. Step 3: Cross multiply
    4,031.91x = 5,565.90 × 2,689.75
  4. Step 4: Simplify right side
    4,031.91x = 14,970,851.70
  5. Step 5: Solve for x
    x = 14,970,851.70/4,031.91
  6. Step 6: Final answer
    x = 3,713.10

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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.