Home / 3,940.11-5,437.50-2,261.39

Finding the Fourth Proportional to 3,940.11, 5,437.50 and 2,261.39

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Solution

The fourth proportional to 3,940.11, 5,437.50 and 2,261.39 is: 3,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.11 : 5,437.50 = 2,261.39 : x
  2. Step 2: Convert to fraction form
    3,940.11/5,437.50 = 2,261.39/x
  3. Step 3: Cross multiply
    3,940.11x = 5,437.50 × 2,261.39
  4. Step 4: Simplify right side
    3,940.11x = 12,296,272.46
  5. Step 5: Solve for x
    x = 12,296,272.46/3,940.11
  6. Step 6: Final answer
    x = 3,120.79

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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.