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Finding the Fourth Proportional to 902.41, 1,246.13 and 694.65

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Solution

The fourth proportional to 902.41, 1,246.13 and 694.65 is: 959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.41 : 1,246.13 = 694.65 : x
  2. Step 2: Convert to fraction form
    902.41/1,246.13 = 694.65/x
  3. Step 3: Cross multiply
    902.41x = 1,246.13 × 694.65
  4. Step 4: Simplify right side
    902.41x = 865,624.20
  5. Step 5: Solve for x
    x = 865,624.20/902.41
  6. Step 6: Final answer
    x = 959.24

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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.