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Finding the Fourth Proportional to 967.66, 1,334.12 and 635.50

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Solution

The fourth proportional to 967.66, 1,334.12 and 635.50 is: 876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.66 : 1,334.12 = 635.50 : x
  2. Step 2: Convert to fraction form
    967.66/1,334.12 = 635.50/x
  3. Step 3: Cross multiply
    967.66x = 1,334.12 × 635.50
  4. Step 4: Simplify right side
    967.66x = 847,833.26
  5. Step 5: Solve for x
    x = 847,833.26/967.66
  6. Step 6: Final answer
    x = 876.17

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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.