Home / 3,687.18-5,531.28-1,346.88

Finding the Fourth Proportional to 3,687.18, 5,531.28 and 1,346.88

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Solution

The fourth proportional to 3,687.18, 5,531.28 and 1,346.88 is: 2,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.18 : 5,531.28 = 1,346.88 : x
  2. Step 2: Convert to fraction form
    3,687.18/5,531.28 = 1,346.88/x
  3. Step 3: Cross multiply
    3,687.18x = 5,531.28 × 1,346.88
  4. Step 4: Simplify right side
    3,687.18x = 7,449,970.41
  5. Step 5: Solve for x
    x = 7,449,970.41/3,687.18
  6. Step 6: Final answer
    x = 2,020.51

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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.