Home / 6,686.52-10,031.04-2,988.90

Finding the Fourth Proportional to 6,686.52, 10,031.04 and 2,988.90

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Solution

The fourth proportional to 6,686.52, 10,031.04 and 2,988.90 is: 4,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.52 : 10,031.04 = 2,988.90 : x
  2. Step 2: Convert to fraction form
    6,686.52/10,031.04 = 2,988.90/x
  3. Step 3: Cross multiply
    6,686.52x = 10,031.04 × 2,988.90
  4. Step 4: Simplify right side
    6,686.52x = 29,981,775.46
  5. Step 5: Solve for x
    x = 29,981,775.46/6,686.52
  6. Step 6: Final answer
    x = 4,483.91

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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.