Home / 3,943.68-5,912.22-1,862.64

Finding the Fourth Proportional to 3,943.68, 5,912.22 and 1,862.64

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Solution

The fourth proportional to 3,943.68, 5,912.22 and 1,862.64 is: 2,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.68 : 5,912.22 = 1,862.64 : x
  2. Step 2: Convert to fraction form
    3,943.68/5,912.22 = 1,862.64/x
  3. Step 3: Cross multiply
    3,943.68x = 5,912.22 × 1,862.64
  4. Step 4: Simplify right side
    3,943.68x = 11,012,337.46
  5. Step 5: Solve for x
    x = 11,012,337.46/3,943.68
  6. Step 6: Final answer
    x = 2,792.40

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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.