Home / 2,487.46-3,731.19-1,117.86

Finding the Fourth Proportional to 2,487.46, 3,731.19 and 1,117.86

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Solution

The fourth proportional to 2,487.46, 3,731.19 and 1,117.86 is: 1,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.46 : 3,731.19 = 1,117.86 : x
  2. Step 2: Convert to fraction form
    2,487.46/3,731.19 = 1,117.86/x
  3. Step 3: Cross multiply
    2,487.46x = 3,731.19 × 1,117.86
  4. Step 4: Simplify right side
    2,487.46x = 4,170,948.05
  5. Step 5: Solve for x
    x = 4,170,948.05/2,487.46
  6. Step 6: Final answer
    x = 1,676.79

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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.