Home / 3,124.38-4,311.45-2,748.54

Finding the Fourth Proportional to 3,124.38, 4,311.45 and 2,748.54

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Solution

The fourth proportional to 3,124.38, 4,311.45 and 2,748.54 is: 3,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.38 : 4,311.45 = 2,748.54 : x
  2. Step 2: Convert to fraction form
    3,124.38/4,311.45 = 2,748.54/x
  3. Step 3: Cross multiply
    3,124.38x = 4,311.45 × 2,748.54
  4. Step 4: Simplify right side
    3,124.38x = 11,850,192.78
  5. Step 5: Solve for x
    x = 11,850,192.78/3,124.38
  6. Step 6: Final answer
    x = 3,792.81

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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.