Home / 2,227.23-3,340.17-765.54

Finding the Fourth Proportional to 2,227.23, 3,340.17 and 765.54

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Solution

The fourth proportional to 2,227.23, 3,340.17 and 765.54 is: 1,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.23 : 3,340.17 = 765.54 : x
  2. Step 2: Convert to fraction form
    2,227.23/3,340.17 = 765.54/x
  3. Step 3: Cross multiply
    2,227.23x = 3,340.17 × 765.54
  4. Step 4: Simplify right side
    2,227.23x = 2,557,033.74
  5. Step 5: Solve for x
    x = 2,557,033.74/2,227.23
  6. Step 6: Final answer
    x = 1,148.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.