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Finding the Fourth Proportional to 2,942.79, 4,414.76 and 995.13

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Solution

The fourth proportional to 2,942.79, 4,414.76 and 995.13 is: 1,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.79 : 4,414.76 = 995.13 : x
  2. Step 2: Convert to fraction form
    2,942.79/4,414.76 = 995.13/x
  3. Step 3: Cross multiply
    2,942.79x = 4,414.76 × 995.13
  4. Step 4: Simplify right side
    2,942.79x = 4,393,255.14
  5. Step 5: Solve for x
    x = 4,393,255.14/2,942.79
  6. Step 6: Final answer
    x = 1,492.89

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1.5x scale

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.