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Finding the Fourth Proportional to 2,366.79, 3,551.76 and 827.79

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Solution

The fourth proportional to 2,366.79, 3,551.76 and 827.79 is: 1,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,366.79 : 3,551.76 = 827.79 : x
  2. Step 2: Convert to fraction form
    2,366.79/3,551.76 = 827.79/x
  3. Step 3: Cross multiply
    2,366.79x = 3,551.76 × 827.79
  4. Step 4: Simplify right side
    2,366.79x = 2,940,111.41
  5. Step 5: Solve for x
    x = 2,940,111.41/2,366.79
  6. Step 6: Final answer
    x = 1,242.24

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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.