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Finding the Fourth Proportional to 5,915.78, 8,868.99 and 2,952.70

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Solution

The fourth proportional to 5,915.78, 8,868.99 and 2,952.70 is: 4,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.78 : 8,868.99 = 2,952.70 : x
  2. Step 2: Convert to fraction form
    5,915.78/8,868.99 = 2,952.70/x
  3. Step 3: Cross multiply
    5,915.78x = 8,868.99 × 2,952.70
  4. Step 4: Simplify right side
    5,915.78x = 26,187,464.01
  5. Step 5: Solve for x
    x = 26,187,464.01/5,915.78
  6. Step 6: Final answer
    x = 4,426.71

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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.