Home / 2,187.41-3,281.18-706.70

Finding the Fourth Proportional to 2,187.41, 3,281.18 and 706.70

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Solution

The fourth proportional to 2,187.41, 3,281.18 and 706.70 is: 1,060.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.41 : 3,281.18 = 706.70 : x
  2. Step 2: Convert to fraction form
    2,187.41/3,281.18 = 706.70/x
  3. Step 3: Cross multiply
    2,187.41x = 3,281.18 × 706.70
  4. Step 4: Simplify right side
    2,187.41x = 2,318,789.97
  5. Step 5: Solve for x
    x = 2,318,789.97/2,187.41
  6. Step 6: Final answer
    x = 1,060.06

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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.