Home / 2,721.97-3,756.21-1,543.02

Finding the Fourth Proportional to 2,721.97, 3,756.21 and 1,543.02

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Solution

The fourth proportional to 2,721.97, 3,756.21 and 1,543.02 is: 2,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.97 : 3,756.21 = 1,543.02 : x
  2. Step 2: Convert to fraction form
    2,721.97/3,756.21 = 1,543.02/x
  3. Step 3: Cross multiply
    2,721.97x = 3,756.21 × 1,543.02
  4. Step 4: Simplify right side
    2,721.97x = 5,795,887.28
  5. Step 5: Solve for x
    x = 5,795,887.28/2,721.97
  6. Step 6: Final answer
    x = 2,129.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.