Home / 3,939.13-5,437.07-2,260.68

Finding the Fourth Proportional to 3,939.13, 5,437.07 and 2,260.68

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Solution

The fourth proportional to 3,939.13, 5,437.07 and 2,260.68 is: 3,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.13 : 5,437.07 = 2,260.68 : x
  2. Step 2: Convert to fraction form
    3,939.13/5,437.07 = 2,260.68/x
  3. Step 3: Cross multiply
    3,939.13x = 5,437.07 × 2,260.68
  4. Step 4: Simplify right side
    3,939.13x = 12,291,510.78
  5. Step 5: Solve for x
    x = 12,291,510.78/3,939.13
  6. Step 6: Final answer
    x = 3,120.36

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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.