Home / 3,940.13-5,437.44-2,545.31

Finding the Fourth Proportional to 3,940.13, 5,437.44 and 2,545.31

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Solution

The fourth proportional to 3,940.13, 5,437.44 and 2,545.31 is: 3,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.13 : 5,437.44 = 2,545.31 : x
  2. Step 2: Convert to fraction form
    3,940.13/5,437.44 = 2,545.31/x
  3. Step 3: Cross multiply
    3,940.13x = 5,437.44 × 2,545.31
  4. Step 4: Simplify right side
    3,940.13x = 13,839,970.41
  5. Step 5: Solve for x
    x = 13,839,970.41/3,940.13
  6. Step 6: Final answer
    x = 3,512.57

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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.