Home / 3,531.62-5,294.18-1,221.50

Finding the Fourth Proportional to 3,531.62, 5,294.18 and 1,221.50

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Solution

The fourth proportional to 3,531.62, 5,294.18 and 1,221.50 is: 1,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.62 : 5,294.18 = 1,221.50 : x
  2. Step 2: Convert to fraction form
    3,531.62/5,294.18 = 1,221.50/x
  3. Step 3: Cross multiply
    3,531.62x = 5,294.18 × 1,221.50
  4. Step 4: Simplify right side
    3,531.62x = 6,466,840.87
  5. Step 5: Solve for x
    x = 6,466,840.87/3,531.62
  6. Step 6: Final answer
    x = 1,831.13

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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.