Home / 7,514.57-11,272.88-3,131

Finding the Fourth Proportional to 7,514.57, 11,272.88 and 3,131

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Solution

The fourth proportional to 7,514.57, 11,272.88 and 3,131 is: 4,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.57 : 11,272.88 = 3,131 : x
  2. Step 2: Convert to fraction form
    7,514.57/11,272.88 = 3,131/x
  3. Step 3: Cross multiply
    7,514.57x = 11,272.88 × 3,131
  4. Step 4: Simplify right side
    7,514.57x = 35,295,387.28
  5. Step 5: Solve for x
    x = 35,295,387.28/7,514.57
  6. Step 6: Final answer
    x = 4,696.93

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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.