Home / 3,429.28-5,140.68-1,237.42

Finding the Fourth Proportional to 3,429.28, 5,140.68 and 1,237.42

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Solution

The fourth proportional to 3,429.28, 5,140.68 and 1,237.42 is: 1,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.28 : 5,140.68 = 1,237.42 : x
  2. Step 2: Convert to fraction form
    3,429.28/5,140.68 = 1,237.42/x
  3. Step 3: Cross multiply
    3,429.28x = 5,140.68 × 1,237.42
  4. Step 4: Simplify right side
    3,429.28x = 6,361,180.25
  5. Step 5: Solve for x
    x = 6,361,180.25/3,429.28
  6. Step 6: Final answer
    x = 1,854.96

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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.