Home / 3,881.20-5,824.20-1,540.82

Finding the Fourth Proportional to 3,881.20, 5,824.20 and 1,540.82

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Solution

The fourth proportional to 3,881.20, 5,824.20 and 1,540.82 is: 2,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.20 : 5,824.20 = 1,540.82 : x
  2. Step 2: Convert to fraction form
    3,881.20/5,824.20 = 1,540.82/x
  3. Step 3: Cross multiply
    3,881.20x = 5,824.20 × 1,540.82
  4. Step 4: Simplify right side
    3,881.20x = 8,974,043.84
  5. Step 5: Solve for x
    x = 8,974,043.84/3,881.20
  6. Step 6: Final answer
    x = 2,312.18

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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.