Home / 5,276.43-7,915.79-1,578.96

Finding the Fourth Proportional to 5,276.43, 7,915.79 and 1,578.96

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Solution

The fourth proportional to 5,276.43, 7,915.79 and 1,578.96 is: 2,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.43 : 7,915.79 = 1,578.96 : x
  2. Step 2: Convert to fraction form
    5,276.43/7,915.79 = 1,578.96/x
  3. Step 3: Cross multiply
    5,276.43x = 7,915.79 × 1,578.96
  4. Step 4: Simplify right side
    5,276.43x = 12,498,715.78
  5. Step 5: Solve for x
    x = 12,498,715.78/5,276.43
  6. Step 6: Final answer
    x = 2,368.78

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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.