Home / 3,741.20-5,612.28-2,211.92

Finding the Fourth Proportional to 3,741.20, 5,612.28 and 2,211.92

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Solution

The fourth proportional to 3,741.20, 5,612.28 and 2,211.92 is: 3,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.20 : 5,612.28 = 2,211.92 : x
  2. Step 2: Convert to fraction form
    3,741.20/5,612.28 = 2,211.92/x
  3. Step 3: Cross multiply
    3,741.20x = 5,612.28 × 2,211.92
  4. Step 4: Simplify right side
    3,741.20x = 12,413,914.38
  5. Step 5: Solve for x
    x = 12,413,914.38/3,741.20
  6. Step 6: Final answer
    x = 3,318.16

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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.