Home / 3,489.07-5,234.17-1,148.40

Finding the Fourth Proportional to 3,489.07, 5,234.17 and 1,148.40

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Solution

The fourth proportional to 3,489.07, 5,234.17 and 1,148.40 is: 1,722.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.07 : 5,234.17 = 1,148.40 : x
  2. Step 2: Convert to fraction form
    3,489.07/5,234.17 = 1,148.40/x
  3. Step 3: Cross multiply
    3,489.07x = 5,234.17 × 1,148.40
  4. Step 4: Simplify right side
    3,489.07x = 6,010,894.66
  5. Step 5: Solve for x
    x = 6,010,894.66/3,489.07
  6. Step 6: Final answer
    x = 1,722.78

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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.