Home / 3,129.01-4,318.52-1,869.66

Finding the Fourth Proportional to 3,129.01, 4,318.52 and 1,869.66

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Solution

The fourth proportional to 3,129.01, 4,318.52 and 1,869.66 is: 2,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.01 : 4,318.52 = 1,869.66 : x
  2. Step 2: Convert to fraction form
    3,129.01/4,318.52 = 1,869.66/x
  3. Step 3: Cross multiply
    3,129.01x = 4,318.52 × 1,869.66
  4. Step 4: Simplify right side
    3,129.01x = 8,074,179.57
  5. Step 5: Solve for x
    x = 8,074,179.57/3,129.01
  6. Step 6: Final answer
    x = 2,580.43

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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.