Home / 3,863.40-5,331.02-2,743.93

Finding the Fourth Proportional to 3,863.40, 5,331.02 and 2,743.93

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Solution

The fourth proportional to 3,863.40, 5,331.02 and 2,743.93 is: 3,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.40 : 5,331.02 = 2,743.93 : x
  2. Step 2: Convert to fraction form
    3,863.40/5,331.02 = 2,743.93/x
  3. Step 3: Cross multiply
    3,863.40x = 5,331.02 × 2,743.93
  4. Step 4: Simplify right side
    3,863.40x = 14,627,945.71
  5. Step 5: Solve for x
    x = 14,627,945.71/3,863.40
  6. Step 6: Final answer
    x = 3,786.29

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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.