Home / 3,749.50-5,175.24-2,178.52

Finding the Fourth Proportional to 3,749.50, 5,175.24 and 2,178.52

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Solution

The fourth proportional to 3,749.50, 5,175.24 and 2,178.52 is: 3,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.50 : 5,175.24 = 2,178.52 : x
  2. Step 2: Convert to fraction form
    3,749.50/5,175.24 = 2,178.52/x
  3. Step 3: Cross multiply
    3,749.50x = 5,175.24 × 2,178.52
  4. Step 4: Simplify right side
    3,749.50x = 11,274,363.84
  5. Step 5: Solve for x
    x = 11,274,363.84/3,749.50
  6. Step 6: Final answer
    x = 3,006.90

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1.5x scale

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.