Home / 5,687.19-8,538.77-2,915.85

Finding the Fourth Proportional to 5,687.19, 8,538.77 and 2,915.85

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Solution

The fourth proportional to 5,687.19, 8,538.77 and 2,915.85 is: 4,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.19 : 8,538.77 = 2,915.85 : x
  2. Step 2: Convert to fraction form
    5,687.19/8,538.77 = 2,915.85/x
  3. Step 3: Cross multiply
    5,687.19x = 8,538.77 × 2,915.85
  4. Step 4: Simplify right side
    5,687.19x = 24,897,772.50
  5. Step 5: Solve for x
    x = 24,897,772.50/5,687.19
  6. Step 6: Final answer
    x = 4,377.87

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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.