Home / 3,811.92-5,265.44-2,938.48

Finding the Fourth Proportional to 3,811.92, 5,265.44 and 2,938.48

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Solution

The fourth proportional to 3,811.92, 5,265.44 and 2,938.48 is: 4,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.92 : 5,265.44 = 2,938.48 : x
  2. Step 2: Convert to fraction form
    3,811.92/5,265.44 = 2,938.48/x
  3. Step 3: Cross multiply
    3,811.92x = 5,265.44 × 2,938.48
  4. Step 4: Simplify right side
    3,811.92x = 15,472,390.13
  5. Step 5: Solve for x
    x = 15,472,390.13/3,811.92
  6. Step 6: Final answer
    x = 4,058.95

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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.