Home / 5,101.65-7,646.40-2,635.20

Finding the Fourth Proportional to 5,101.65, 7,646.40 and 2,635.20

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Solution

The fourth proportional to 5,101.65, 7,646.40 and 2,635.20 is: 3,949.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.65 : 7,646.40 = 2,635.20 : x
  2. Step 2: Convert to fraction form
    5,101.65/7,646.40 = 2,635.20/x
  3. Step 3: Cross multiply
    5,101.65x = 7,646.40 × 2,635.20
  4. Step 4: Simplify right side
    5,101.65x = 20,149,793.28
  5. Step 5: Solve for x
    x = 20,149,793.28/5,101.65
  6. Step 6: Final answer
    x = 3,949.66

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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.