Home / 3,581.90-5,369.61-1,272.86

Finding the Fourth Proportional to 3,581.90, 5,369.61 and 1,272.86

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Solution

The fourth proportional to 3,581.90, 5,369.61 and 1,272.86 is: 1,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.90 : 5,369.61 = 1,272.86 : x
  2. Step 2: Convert to fraction form
    3,581.90/5,369.61 = 1,272.86/x
  3. Step 3: Cross multiply
    3,581.90x = 5,369.61 × 1,272.86
  4. Step 4: Simplify right side
    3,581.90x = 6,834,761.78
  5. Step 5: Solve for x
    x = 6,834,761.78/3,581.90
  6. Step 6: Final answer
    x = 1,908.14

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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.