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Finding the Fourth Proportional to 2,965.79, 4,449.32 and 885.96

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Solution

The fourth proportional to 2,965.79, 4,449.32 and 885.96 is: 1,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.79 : 4,449.32 = 885.96 : x
  2. Step 2: Convert to fraction form
    2,965.79/4,449.32 = 885.96/x
  3. Step 3: Cross multiply
    2,965.79x = 4,449.32 × 885.96
  4. Step 4: Simplify right side
    2,965.79x = 3,941,921.76
  5. Step 5: Solve for x
    x = 3,941,921.76/2,965.79
  6. Step 6: Final answer
    x = 1,329.13

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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.