Home / 5,372.40-8,003.20-5,209.17

Finding the Fourth Proportional to 5,372.40, 8,003.20 and 5,209.17

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Solution

The fourth proportional to 5,372.40, 8,003.20 and 5,209.17 is: 7,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.40 : 8,003.20 = 5,209.17 : x
  2. Step 2: Convert to fraction form
    5,372.40/8,003.20 = 5,209.17/x
  3. Step 3: Cross multiply
    5,372.40x = 8,003.20 × 5,209.17
  4. Step 4: Simplify right side
    5,372.40x = 41,690,003.30
  5. Step 5: Solve for x
    x = 41,690,003.30/5,372.40
  6. Step 6: Final answer
    x = 7,760.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.