Home / 3,742.80-5,165.50-2,251.46

Finding the Fourth Proportional to 3,742.80, 5,165.50 and 2,251.46

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Solution

The fourth proportional to 3,742.80, 5,165.50 and 2,251.46 is: 3,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.80 : 5,165.50 = 2,251.46 : x
  2. Step 2: Convert to fraction form
    3,742.80/5,165.50 = 2,251.46/x
  3. Step 3: Cross multiply
    3,742.80x = 5,165.50 × 2,251.46
  4. Step 4: Simplify right side
    3,742.80x = 11,629,916.63
  5. Step 5: Solve for x
    x = 11,629,916.63/3,742.80
  6. Step 6: Final answer
    x = 3,107.28

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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.