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Finding the Fourth Proportional to 1,463.97, 2,020.34 and 834.55

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Solution

The fourth proportional to 1,463.97, 2,020.34 and 834.55 is: 1,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.97 : 2,020.34 = 834.55 : x
  2. Step 2: Convert to fraction form
    1,463.97/2,020.34 = 834.55/x
  3. Step 3: Cross multiply
    1,463.97x = 2,020.34 × 834.55
  4. Step 4: Simplify right side
    1,463.97x = 1,686,074.75
  5. Step 5: Solve for x
    x = 1,686,074.75/1,463.97
  6. Step 6: Final answer
    x = 1,151.71

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1.5x scale

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.