Home / 6,517.59-8,990.97-4,123.54

Finding the Fourth Proportional to 6,517.59, 8,990.97 and 4,123.54

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Solution

The fourth proportional to 6,517.59, 8,990.97 and 4,123.54 is: 5,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.59 : 8,990.97 = 4,123.54 : x
  2. Step 2: Convert to fraction form
    6,517.59/8,990.97 = 4,123.54/x
  3. Step 3: Cross multiply
    6,517.59x = 8,990.97 × 4,123.54
  4. Step 4: Simplify right side
    6,517.59x = 37,074,646.91
  5. Step 5: Solve for x
    x = 37,074,646.91/6,517.59
  6. Step 6: Final answer
    x = 5,688.40

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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.