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Finding the Fourth Proportional to 966.94, 1,334.48 and 635.45

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Solution

The fourth proportional to 966.94, 1,334.48 and 635.45 is: 876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.94 : 1,334.48 = 635.45 : x
  2. Step 2: Convert to fraction form
    966.94/1,334.48 = 635.45/x
  3. Step 3: Cross multiply
    966.94x = 1,334.48 × 635.45
  4. Step 4: Simplify right side
    966.94x = 847,985.47
  5. Step 5: Solve for x
    x = 847,985.47/966.94
  6. Step 6: Final answer
    x = 876.98

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Double scale
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1.5x scale

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.