Home / 5,147.26-7,720.89-3,615.10

Finding the Fourth Proportional to 5,147.26, 7,720.89 and 3,615.10

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Solution

The fourth proportional to 5,147.26, 7,720.89 and 3,615.10 is: 5,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.26 : 7,720.89 = 3,615.10 : x
  2. Step 2: Convert to fraction form
    5,147.26/7,720.89 = 3,615.10/x
  3. Step 3: Cross multiply
    5,147.26x = 7,720.89 × 3,615.10
  4. Step 4: Simplify right side
    5,147.26x = 27,911,789.44
  5. Step 5: Solve for x
    x = 27,911,789.44/5,147.26
  6. Step 6: Final answer
    x = 5,422.65

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Half scale
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Double scale
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Similar ratio
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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.