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Finding the Fourth Proportional to 1,532.64, 2,114.97 and 834.02

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Solution

The fourth proportional to 1,532.64, 2,114.97 and 834.02 is: 1,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.64 : 2,114.97 = 834.02 : x
  2. Step 2: Convert to fraction form
    1,532.64/2,114.97 = 834.02/x
  3. Step 3: Cross multiply
    1,532.64x = 2,114.97 × 834.02
  4. Step 4: Simplify right side
    1,532.64x = 1,763,916.70
  5. Step 5: Solve for x
    x = 1,763,916.70/1,532.64
  6. Step 6: Final answer
    x = 1,150.90

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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.