Home / 3,699.40-5,557.20-2,731.72

Finding the Fourth Proportional to 3,699.40, 5,557.20 and 2,731.72

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Solution

The fourth proportional to 3,699.40, 5,557.20 and 2,731.72 is: 4,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.40 : 5,557.20 = 2,731.72 : x
  2. Step 2: Convert to fraction form
    3,699.40/5,557.20 = 2,731.72/x
  3. Step 3: Cross multiply
    3,699.40x = 5,557.20 × 2,731.72
  4. Step 4: Simplify right side
    3,699.40x = 15,180,714.38
  5. Step 5: Solve for x
    x = 15,180,714.38/3,699.40
  6. Step 6: Final answer
    x = 4,103.56

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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.