Home / 3,939.93-5,437.14-2,261.37

Finding the Fourth Proportional to 3,939.93, 5,437.14 and 2,261.37

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Solution

The fourth proportional to 3,939.93, 5,437.14 and 2,261.37 is: 3,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.93 : 5,437.14 = 2,261.37 : x
  2. Step 2: Convert to fraction form
    3,939.93/5,437.14 = 2,261.37/x
  3. Step 3: Cross multiply
    3,939.93x = 5,437.14 × 2,261.37
  4. Step 4: Simplify right side
    3,939.93x = 12,295,385.28
  5. Step 5: Solve for x
    x = 12,295,385.28/3,939.93
  6. Step 6: Final answer
    x = 3,120.71

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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.