Home / 3,131.96-4,691.24-1,486.04

Finding the Fourth Proportional to 3,131.96, 4,691.24 and 1,486.04

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Solution

The fourth proportional to 3,131.96, 4,691.24 and 1,486.04 is: 2,225.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.96 : 4,691.24 = 1,486.04 : x
  2. Step 2: Convert to fraction form
    3,131.96/4,691.24 = 1,486.04/x
  3. Step 3: Cross multiply
    3,131.96x = 4,691.24 × 1,486.04
  4. Step 4: Simplify right side
    3,131.96x = 6,971,370.29
  5. Step 5: Solve for x
    x = 6,971,370.29/3,131.96
  6. Step 6: Final answer
    x = 2,225.88

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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.