Home / 2,489.39-3,734.07-1,186.91

Finding the Fourth Proportional to 2,489.39, 3,734.07 and 1,186.91

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Solution

The fourth proportional to 2,489.39, 3,734.07 and 1,186.91 is: 1,780.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.39 : 3,734.07 = 1,186.91 : x
  2. Step 2: Convert to fraction form
    2,489.39/3,734.07 = 1,186.91/x
  3. Step 3: Cross multiply
    2,489.39x = 3,734.07 × 1,186.91
  4. Step 4: Simplify right side
    2,489.39x = 4,432,005.02
  5. Step 5: Solve for x
    x = 4,432,005.02/2,489.39
  6. Step 6: Final answer
    x = 1,780.36

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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.