Home / 5,147.14-7,720.60-5,010.45

Finding the Fourth Proportional to 5,147.14, 7,720.60 and 5,010.45

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Solution

The fourth proportional to 5,147.14, 7,720.60 and 5,010.45 is: 7,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.14 : 7,720.60 = 5,010.45 : x
  2. Step 2: Convert to fraction form
    5,147.14/7,720.60 = 5,010.45/x
  3. Step 3: Cross multiply
    5,147.14x = 7,720.60 × 5,010.45
  4. Step 4: Simplify right side
    5,147.14x = 38,683,616.61
  5. Step 5: Solve for x
    x = 38,683,616.61/5,147.14
  6. Step 6: Final answer
    x = 7,515.56

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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.