Home / 3,940.73-5,437.89-2,448.17

Finding the Fourth Proportional to 3,940.73, 5,437.89 and 2,448.17

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Solution

The fourth proportional to 3,940.73, 5,437.89 and 2,448.17 is: 3,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.73 : 5,437.89 = 2,448.17 : x
  2. Step 2: Convert to fraction form
    3,940.73/5,437.89 = 2,448.17/x
  3. Step 3: Cross multiply
    3,940.73x = 5,437.89 × 2,448.17
  4. Step 4: Simplify right side
    3,940.73x = 13,312,851.97
  5. Step 5: Solve for x
    x = 13,312,851.97/3,940.73
  6. Step 6: Final answer
    x = 3,378.27

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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.