Home / 5,424.03-8,136.05-5,147.01

Finding the Fourth Proportional to 5,424.03, 8,136.05 and 5,147.01

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Solution

The fourth proportional to 5,424.03, 8,136.05 and 5,147.01 is: 7,720.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.03 : 8,136.05 = 5,147.01 : x
  2. Step 2: Convert to fraction form
    5,424.03/8,136.05 = 5,147.01/x
  3. Step 3: Cross multiply
    5,424.03x = 8,136.05 × 5,147.01
  4. Step 4: Simplify right side
    5,424.03x = 41,876,304.98
  5. Step 5: Solve for x
    x = 41,876,304.98/5,424.03
  6. Step 6: Final answer
    x = 7,720.52

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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.