Home / 3,940.22-5,437.42-2,262.65

Finding the Fourth Proportional to 3,940.22, 5,437.42 and 2,262.65

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Solution

The fourth proportional to 3,940.22, 5,437.42 and 2,262.65 is: 3,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.22 : 5,437.42 = 2,262.65 : x
  2. Step 2: Convert to fraction form
    3,940.22/5,437.42 = 2,262.65/x
  3. Step 3: Cross multiply
    3,940.22x = 5,437.42 × 2,262.65
  4. Step 4: Simplify right side
    3,940.22x = 12,302,945.52
  5. Step 5: Solve for x
    x = 12,302,945.52/3,940.22
  6. Step 6: Final answer
    x = 3,122.40

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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.