Home / 3,681.45-5,517.72-1,489.59

Finding the Fourth Proportional to 3,681.45, 5,517.72 and 1,489.59

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Solution

The fourth proportional to 3,681.45, 5,517.72 and 1,489.59 is: 2,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.45 : 5,517.72 = 1,489.59 : x
  2. Step 2: Convert to fraction form
    3,681.45/5,517.72 = 1,489.59/x
  3. Step 3: Cross multiply
    3,681.45x = 5,517.72 × 1,489.59
  4. Step 4: Simplify right side
    3,681.45x = 8,219,140.53
  5. Step 5: Solve for x
    x = 8,219,140.53/3,681.45
  6. Step 6: Final answer
    x = 2,232.58

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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.