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Finding the Fourth Proportional to 1,792.88, 2,474.92 and 1,543.22

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Solution

The fourth proportional to 1,792.88, 2,474.92 and 1,543.22 is: 2,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.88 : 2,474.92 = 1,543.22 : x
  2. Step 2: Convert to fraction form
    1,792.88/2,474.92 = 1,543.22/x
  3. Step 3: Cross multiply
    1,792.88x = 2,474.92 × 1,543.22
  4. Step 4: Simplify right side
    1,792.88x = 3,819,346.04
  5. Step 5: Solve for x
    x = 3,819,346.04/1,792.88
  6. Step 6: Final answer
    x = 2,130.29

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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.