Home / 3,939.24-5,435.31-2,260.53

Finding the Fourth Proportional to 3,939.24, 5,435.31 and 2,260.53

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Solution

The fourth proportional to 3,939.24, 5,435.31 and 2,260.53 is: 3,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.24 : 5,435.31 = 2,260.53 : x
  2. Step 2: Convert to fraction form
    3,939.24/5,435.31 = 2,260.53/x
  3. Step 3: Cross multiply
    3,939.24x = 5,435.31 × 2,260.53
  4. Step 4: Simplify right side
    3,939.24x = 12,286,681.31
  5. Step 5: Solve for x
    x = 12,286,681.31/3,939.24
  6. Step 6: Final answer
    x = 3,119.05

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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.