Home / 5,425.57-8,132.85-2,140.99

Finding the Fourth Proportional to 5,425.57, 8,132.85 and 2,140.99

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Solution

The fourth proportional to 5,425.57, 8,132.85 and 2,140.99 is: 3,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.57 : 8,132.85 = 2,140.99 : x
  2. Step 2: Convert to fraction form
    5,425.57/8,132.85 = 2,140.99/x
  3. Step 3: Cross multiply
    5,425.57x = 8,132.85 × 2,140.99
  4. Step 4: Simplify right side
    5,425.57x = 17,412,350.52
  5. Step 5: Solve for x
    x = 17,412,350.52/5,425.57
  6. Step 6: Final answer
    x = 3,209.31

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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.