Home / 3,385.60-5,071.04-2,149.92

Finding the Fourth Proportional to 3,385.60, 5,071.04 and 2,149.92

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Solution

The fourth proportional to 3,385.60, 5,071.04 and 2,149.92 is: 3,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.60 : 5,071.04 = 2,149.92 : x
  2. Step 2: Convert to fraction form
    3,385.60/5,071.04 = 2,149.92/x
  3. Step 3: Cross multiply
    3,385.60x = 5,071.04 × 2,149.92
  4. Step 4: Simplify right side
    3,385.60x = 10,902,330.32
  5. Step 5: Solve for x
    x = 10,902,330.32/3,385.60
  6. Step 6: Final answer
    x = 3,220.21

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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.