Home / 3,679.65-5,513.40-3,132.90

Finding the Fourth Proportional to 3,679.65, 5,513.40 and 3,132.90

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Solution

The fourth proportional to 3,679.65, 5,513.40 and 3,132.90 is: 4,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.65 : 5,513.40 = 3,132.90 : x
  2. Step 2: Convert to fraction form
    3,679.65/5,513.40 = 3,132.90/x
  3. Step 3: Cross multiply
    3,679.65x = 5,513.40 × 3,132.90
  4. Step 4: Simplify right side
    3,679.65x = 17,272,930.86
  5. Step 5: Solve for x
    x = 17,272,930.86/3,679.65
  6. Step 6: Final answer
    x = 4,694.18

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1.5x scale

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.