Home / 4,342.38-6,515.88-2,151.12

Finding the Fourth Proportional to 4,342.38, 6,515.88 and 2,151.12

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Solution

The fourth proportional to 4,342.38, 6,515.88 and 2,151.12 is: 3,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,342.38 : 6,515.88 = 2,151.12 : x
  2. Step 2: Convert to fraction form
    4,342.38/6,515.88 = 2,151.12/x
  3. Step 3: Cross multiply
    4,342.38x = 6,515.88 × 2,151.12
  4. Step 4: Simplify right side
    4,342.38x = 14,016,439.79
  5. Step 5: Solve for x
    x = 14,016,439.79/4,342.38
  6. Step 6: Final answer
    x = 3,227.82

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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.