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Finding the Fourth Proportional to 2,244.79, 3,367.76 and 857.98

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Solution

The fourth proportional to 2,244.79, 3,367.76 and 857.98 is: 1,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,244.79 : 3,367.76 = 857.98 : x
  2. Step 2: Convert to fraction form
    2,244.79/3,367.76 = 857.98/x
  3. Step 3: Cross multiply
    2,244.79x = 3,367.76 × 857.98
  4. Step 4: Simplify right side
    2,244.79x = 2,889,470.64
  5. Step 5: Solve for x
    x = 2,889,470.64/2,244.79
  6. Step 6: Final answer
    x = 1,287.19

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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.