Home / 7,515.90-11,276-2,251.30

Finding the Fourth Proportional to 7,515.90, 11,276 and 2,251.30

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Solution

The fourth proportional to 7,515.90, 11,276 and 2,251.30 is: 3,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.90 : 11,276 = 2,251.30 : x
  2. Step 2: Convert to fraction form
    7,515.90/11,276 = 2,251.30/x
  3. Step 3: Cross multiply
    7,515.90x = 11,276 × 2,251.30
  4. Step 4: Simplify right side
    7,515.90x = 25,385,658.80
  5. Step 5: Solve for x
    x = 25,385,658.80/7,515.90
  6. Step 6: Final answer
    x = 3,377.59

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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.