Home / 5,116.20-7,669.80-3,031.08

Finding the Fourth Proportional to 5,116.20, 7,669.80 and 3,031.08

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Solution

The fourth proportional to 5,116.20, 7,669.80 and 3,031.08 is: 4,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.20 : 7,669.80 = 3,031.08 : x
  2. Step 2: Convert to fraction form
    5,116.20/7,669.80 = 3,031.08/x
  3. Step 3: Cross multiply
    5,116.20x = 7,669.80 × 3,031.08
  4. Step 4: Simplify right side
    5,116.20x = 23,247,777.38
  5. Step 5: Solve for x
    x = 23,247,777.38/5,116.20
  6. Step 6: Final answer
    x = 4,543.95

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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.