Home / 3,940.17-5,438.48-2,326.49

Finding the Fourth Proportional to 3,940.17, 5,438.48 and 2,326.49

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Solution

The fourth proportional to 3,940.17, 5,438.48 and 2,326.49 is: 3,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.17 : 5,438.48 = 2,326.49 : x
  2. Step 2: Convert to fraction form
    3,940.17/5,438.48 = 2,326.49/x
  3. Step 3: Cross multiply
    3,940.17x = 5,438.48 × 2,326.49
  4. Step 4: Simplify right side
    3,940.17x = 12,652,550.90
  5. Step 5: Solve for x
    x = 12,652,550.90/3,940.17
  6. Step 6: Final answer
    x = 3,211.17

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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.