Home / 3,470.18-4,791.20-2,672.12

Finding the Fourth Proportional to 3,470.18, 4,791.20 and 2,672.12

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Solution

The fourth proportional to 3,470.18, 4,791.20 and 2,672.12 is: 3,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.18 : 4,791.20 = 2,672.12 : x
  2. Step 2: Convert to fraction form
    3,470.18/4,791.20 = 2,672.12/x
  3. Step 3: Cross multiply
    3,470.18x = 4,791.20 × 2,672.12
  4. Step 4: Simplify right side
    3,470.18x = 12,802,624.03
  5. Step 5: Solve for x
    x = 12,802,624.03/3,470.18
  6. Step 6: Final answer
    x = 3,689.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.