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Finding the Fourth Proportional to 951.06, 1,312.32 and 635.82

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Solution

The fourth proportional to 951.06, 1,312.32 and 635.82 is: 877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.06 : 1,312.32 = 635.82 : x
  2. Step 2: Convert to fraction form
    951.06/1,312.32 = 635.82/x
  3. Step 3: Cross multiply
    951.06x = 1,312.32 × 635.82
  4. Step 4: Simplify right side
    951.06x = 834,399.30
  5. Step 5: Solve for x
    x = 834,399.30/951.06
  6. Step 6: Final answer
    x = 877.34

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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.