Home / 5,171.18-7,136.27-3,074.90

Finding the Fourth Proportional to 5,171.18, 7,136.27 and 3,074.90

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Solution

The fourth proportional to 5,171.18, 7,136.27 and 3,074.90 is: 4,243.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.18 : 7,136.27 = 3,074.90 : x
  2. Step 2: Convert to fraction form
    5,171.18/7,136.27 = 3,074.90/x
  3. Step 3: Cross multiply
    5,171.18x = 7,136.27 × 3,074.90
  4. Step 4: Simplify right side
    5,171.18x = 21,943,265.57
  5. Step 5: Solve for x
    x = 21,943,265.57/5,171.18
  6. Step 6: Final answer
    x = 4,243.38

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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.