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Finding the Fourth Proportional to 1,792.72, 2,689.88 and 1,763.56

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Solution

The fourth proportional to 1,792.72, 2,689.88 and 1,763.56 is: 2,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.72 : 2,689.88 = 1,763.56 : x
  2. Step 2: Convert to fraction form
    1,792.72/2,689.88 = 1,763.56/x
  3. Step 3: Cross multiply
    1,792.72x = 2,689.88 × 1,763.56
  4. Step 4: Simplify right side
    1,792.72x = 4,743,764.77
  5. Step 5: Solve for x
    x = 4,743,764.77/1,792.72
  6. Step 6: Final answer
    x = 2,646.13

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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.