Home / 4,038.52-5,565.90-2,988.76

Finding the Fourth Proportional to 4,038.52, 5,565.90 and 2,988.76

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Solution

The fourth proportional to 4,038.52, 5,565.90 and 2,988.76 is: 4,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,038.52 : 5,565.90 = 2,988.76 : x
  2. Step 2: Convert to fraction form
    4,038.52/5,565.90 = 2,988.76/x
  3. Step 3: Cross multiply
    4,038.52x = 5,565.90 × 2,988.76
  4. Step 4: Simplify right side
    4,038.52x = 16,635,139.28
  5. Step 5: Solve for x
    x = 16,635,139.28/4,038.52
  6. Step 6: Final answer
    x = 4,119.12

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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.