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Finding the Fourth Proportional to 2,964.60, 4,446.90 and 1,871.10

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Solution

The fourth proportional to 2,964.60, 4,446.90 and 1,871.10 is: 2,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.60 : 4,446.90 = 1,871.10 : x
  2. Step 2: Convert to fraction form
    2,964.60/4,446.90 = 1,871.10/x
  3. Step 3: Cross multiply
    2,964.60x = 4,446.90 × 1,871.10
  4. Step 4: Simplify right side
    2,964.60x = 8,320,594.59
  5. Step 5: Solve for x
    x = 8,320,594.59/2,964.60
  6. Step 6: Final answer
    x = 2,806.65

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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.