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Finding the Fourth Proportional to 1,194.80, 1,793.87 and 948.15

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Solution

The fourth proportional to 1,194.80, 1,793.87 and 948.15 is: 1,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.80 : 1,793.87 = 948.15 : x
  2. Step 2: Convert to fraction form
    1,194.80/1,793.87 = 948.15/x
  3. Step 3: Cross multiply
    1,194.80x = 1,793.87 × 948.15
  4. Step 4: Simplify right side
    1,194.80x = 1,700,853.10
  5. Step 5: Solve for x
    x = 1,700,853.10/1,194.80
  6. Step 6: Final answer
    x = 1,423.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.