Home / 3,938.65-5,437.86-2,448.73

Finding the Fourth Proportional to 3,938.65, 5,437.86 and 2,448.73

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Solution

The fourth proportional to 3,938.65, 5,437.86 and 2,448.73 is: 3,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.65 : 5,437.86 = 2,448.73 : x
  2. Step 2: Convert to fraction form
    3,938.65/5,437.86 = 2,448.73/x
  3. Step 3: Cross multiply
    3,938.65x = 5,437.86 × 2,448.73
  4. Step 4: Simplify right side
    3,938.65x = 13,315,850.92
  5. Step 5: Solve for x
    x = 13,315,850.92/3,938.65
  6. Step 6: Final answer
    x = 3,380.82

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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.