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Finding the Fourth Proportional to 2,913.96, 4,371.02 and 966.20

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Solution

The fourth proportional to 2,913.96, 4,371.02 and 966.20 is: 1,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.96 : 4,371.02 = 966.20 : x
  2. Step 2: Convert to fraction form
    2,913.96/4,371.02 = 966.20/x
  3. Step 3: Cross multiply
    2,913.96x = 4,371.02 × 966.20
  4. Step 4: Simplify right side
    2,913.96x = 4,223,279.52
  5. Step 5: Solve for x
    x = 4,223,279.52/2,913.96
  6. Step 6: Final answer
    x = 1,449.33

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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.