Home / 5,147.49-7,103.66-3,159.14

Finding the Fourth Proportional to 5,147.49, 7,103.66 and 3,159.14

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Solution

The fourth proportional to 5,147.49, 7,103.66 and 3,159.14 is: 4,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.49 : 7,103.66 = 3,159.14 : x
  2. Step 2: Convert to fraction form
    5,147.49/7,103.66 = 3,159.14/x
  3. Step 3: Cross multiply
    5,147.49x = 7,103.66 × 3,159.14
  4. Step 4: Simplify right side
    5,147.49x = 22,441,449.55
  5. Step 5: Solve for x
    x = 22,441,449.55/5,147.49
  6. Step 6: Final answer
    x = 4,359.69

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.