Home / 6,687.30-10,031.16-2,988.66

Finding the Fourth Proportional to 6,687.30, 10,031.16 and 2,988.66

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Solution

The fourth proportional to 6,687.30, 10,031.16 and 2,988.66 is: 4,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.30 : 10,031.16 = 2,988.66 : x
  2. Step 2: Convert to fraction form
    6,687.30/10,031.16 = 2,988.66/x
  3. Step 3: Cross multiply
    6,687.30x = 10,031.16 × 2,988.66
  4. Step 4: Simplify right side
    6,687.30x = 29,979,726.65
  5. Step 5: Solve for x
    x = 29,979,726.65/6,687.30
  6. Step 6: Final answer
    x = 4,483.08

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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.