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Finding the Fourth Proportional to 2,964.20, 4,446.29 and 773.15

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Solution

The fourth proportional to 2,964.20, 4,446.29 and 773.15 is: 1,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.20 : 4,446.29 = 773.15 : x
  2. Step 2: Convert to fraction form
    2,964.20/4,446.29 = 773.15/x
  3. Step 3: Cross multiply
    2,964.20x = 4,446.29 × 773.15
  4. Step 4: Simplify right side
    2,964.20x = 3,437,628.81
  5. Step 5: Solve for x
    x = 3,437,628.81/2,964.20
  6. Step 6: Final answer
    x = 1,159.72

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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.