Home / 3,938.65-5,435.45-2,260.36

Finding the Fourth Proportional to 3,938.65, 5,435.45 and 2,260.36

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Solution

The fourth proportional to 3,938.65, 5,435.45 and 2,260.36 is: 3,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.65 : 5,435.45 = 2,260.36 : x
  2. Step 2: Convert to fraction form
    3,938.65/5,435.45 = 2,260.36/x
  3. Step 3: Cross multiply
    3,938.65x = 5,435.45 × 2,260.36
  4. Step 4: Simplify right side
    3,938.65x = 12,286,059.87
  5. Step 5: Solve for x
    x = 12,286,059.87/3,938.65
  6. Step 6: Final answer
    x = 3,119.36

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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.