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Finding the Fourth Proportional to 1,506.71, 2,079.18 and 834.48

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Solution

The fourth proportional to 1,506.71, 2,079.18 and 834.48 is: 1,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.71 : 2,079.18 = 834.48 : x
  2. Step 2: Convert to fraction form
    1,506.71/2,079.18 = 834.48/x
  3. Step 3: Cross multiply
    1,506.71x = 2,079.18 × 834.48
  4. Step 4: Simplify right side
    1,506.71x = 1,735,034.13
  5. Step 5: Solve for x
    x = 1,735,034.13/1,506.71
  6. Step 6: Final answer
    x = 1,151.54

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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.