Home / 3,943.45-5,915.55-1,480.03

Finding the Fourth Proportional to 3,943.45, 5,915.55 and 1,480.03

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Solution

The fourth proportional to 3,943.45, 5,915.55 and 1,480.03 is: 2,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.45 : 5,915.55 = 1,480.03 : x
  2. Step 2: Convert to fraction form
    3,943.45/5,915.55 = 1,480.03/x
  3. Step 3: Cross multiply
    3,943.45x = 5,915.55 × 1,480.03
  4. Step 4: Simplify right side
    3,943.45x = 8,755,191.47
  5. Step 5: Solve for x
    x = 8,755,191.47/3,943.45
  6. Step 6: Final answer
    x = 2,220.19

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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.