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Finding the Fourth Proportional to 2,770.92, 3,824.40 and 1,709.04

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Solution

The fourth proportional to 2,770.92, 3,824.40 and 1,709.04 is: 2,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.92 : 3,824.40 = 1,709.04 : x
  2. Step 2: Convert to fraction form
    2,770.92/3,824.40 = 1,709.04/x
  3. Step 3: Cross multiply
    2,770.92x = 3,824.40 × 1,709.04
  4. Step 4: Simplify right side
    2,770.92x = 6,536,052.58
  5. Step 5: Solve for x
    x = 6,536,052.58/2,770.92
  6. Step 6: Final answer
    x = 2,358.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.