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Finding the Fourth Proportional to 963.59, 1,435.42 and 934.54

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Solution

The fourth proportional to 963.59, 1,435.42 and 934.54 is: 1,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.59 : 1,435.42 = 934.54 : x
  2. Step 2: Convert to fraction form
    963.59/1,435.42 = 934.54/x
  3. Step 3: Cross multiply
    963.59x = 1,435.42 × 934.54
  4. Step 4: Simplify right side
    963.59x = 1,341,459.74
  5. Step 5: Solve for x
    x = 1,341,459.74/963.59
  6. Step 6: Final answer
    x = 1,392.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.