Home / 5,221.38-7,830.19-1,522.87

Finding the Fourth Proportional to 5,221.38, 7,830.19 and 1,522.87

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Solution

The fourth proportional to 5,221.38, 7,830.19 and 1,522.87 is: 2,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.38 : 7,830.19 = 1,522.87 : x
  2. Step 2: Convert to fraction form
    5,221.38/7,830.19 = 1,522.87/x
  3. Step 3: Cross multiply
    5,221.38x = 7,830.19 × 1,522.87
  4. Step 4: Simplify right side
    5,221.38x = 11,924,361.45
  5. Step 5: Solve for x
    x = 11,924,361.45/5,221.38
  6. Step 6: Final answer
    x = 2,283.76

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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.