Home / 2,734.40-4,105.92-2,159.84

Finding the Fourth Proportional to 2,734.40, 4,105.92 and 2,159.84

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Solution

The fourth proportional to 2,734.40, 4,105.92 and 2,159.84 is: 3,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.40 : 4,105.92 = 2,159.84 : x
  2. Step 2: Convert to fraction form
    2,734.40/4,105.92 = 2,159.84/x
  3. Step 3: Cross multiply
    2,734.40x = 4,105.92 × 2,159.84
  4. Step 4: Simplify right side
    2,734.40x = 8,868,130.25
  5. Step 5: Solve for x
    x = 8,868,130.25/2,734.40
  6. Step 6: Final answer
    x = 3,243.17

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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.