Home / 3,469.60-5,204.40-2,972.80

Finding the Fourth Proportional to 3,469.60, 5,204.40 and 2,972.80

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Solution

The fourth proportional to 3,469.60, 5,204.40 and 2,972.80 is: 4,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.60 : 5,204.40 = 2,972.80 : x
  2. Step 2: Convert to fraction form
    3,469.60/5,204.40 = 2,972.80/x
  3. Step 3: Cross multiply
    3,469.60x = 5,204.40 × 2,972.80
  4. Step 4: Simplify right side
    3,469.60x = 15,471,640.32
  5. Step 5: Solve for x
    x = 15,471,640.32/3,469.60
  6. Step 6: Final answer
    x = 4,459.20

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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.