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Finding the Fourth Proportional to 2,701.42, 4,052.79 and 852.76

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Solution

The fourth proportional to 2,701.42, 4,052.79 and 852.76 is: 1,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,701.42 : 4,052.79 = 852.76 : x
  2. Step 2: Convert to fraction form
    2,701.42/4,052.79 = 852.76/x
  3. Step 3: Cross multiply
    2,701.42x = 4,052.79 × 852.76
  4. Step 4: Simplify right side
    2,701.42x = 3,456,057.20
  5. Step 5: Solve for x
    x = 3,456,057.20/2,701.42
  6. Step 6: Final answer
    x = 1,279.35

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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.