Home / 2,721.92-3,756.12-1,543.16

Finding the Fourth Proportional to 2,721.92, 3,756.12 and 1,543.16

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Solution

The fourth proportional to 2,721.92, 3,756.12 and 1,543.16 is: 2,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.92 : 3,756.12 = 1,543.16 : x
  2. Step 2: Convert to fraction form
    2,721.92/3,756.12 = 1,543.16/x
  3. Step 3: Cross multiply
    2,721.92x = 3,756.12 × 1,543.16
  4. Step 4: Simplify right side
    2,721.92x = 5,796,294.14
  5. Step 5: Solve for x
    x = 5,796,294.14/2,721.92
  6. Step 6: Final answer
    x = 2,129.49

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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.