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Finding the Fourth Proportional to 834.00, 1,154.15 and 669.97

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Solution

The fourth proportional to 834.00, 1,154.15 and 669.97 is: 927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.00 : 1,154.15 = 669.97 : x
  2. Step 2: Convert to fraction form
    834.00/1,154.15 = 669.97/x
  3. Step 3: Cross multiply
    834.00x = 1,154.15 × 669.97
  4. Step 4: Simplify right side
    834.00x = 773,246.48
  5. Step 5: Solve for x
    x = 773,246.48/834.00
  6. Step 6: Final answer
    x = 927.16

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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.