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Finding the Fourth Proportional to 2,894.56, 4,342.20 and 1,162.80

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Solution

The fourth proportional to 2,894.56, 4,342.20 and 1,162.80 is: 1,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.56 : 4,342.20 = 1,162.80 : x
  2. Step 2: Convert to fraction form
    2,894.56/4,342.20 = 1,162.80/x
  3. Step 3: Cross multiply
    2,894.56x = 4,342.20 × 1,162.80
  4. Step 4: Simplify right side
    2,894.56x = 5,049,110.16
  5. Step 5: Solve for x
    x = 5,049,110.16/2,894.56
  6. Step 6: Final answer
    x = 1,744.34

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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.