Home / 3,101.56-4,654.20-1,641.76

Finding the Fourth Proportional to 3,101.56, 4,654.20 and 1,641.76

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Solution

The fourth proportional to 3,101.56, 4,654.20 and 1,641.76 is: 2,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.56 : 4,654.20 = 1,641.76 : x
  2. Step 2: Convert to fraction form
    3,101.56/4,654.20 = 1,641.76/x
  3. Step 3: Cross multiply
    3,101.56x = 4,654.20 × 1,641.76
  4. Step 4: Simplify right side
    3,101.56x = 7,641,079.39
  5. Step 5: Solve for x
    x = 7,641,079.39/3,101.56
  6. Step 6: Final answer
    x = 2,463.62

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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.