Home / 2,208.42-3,313.07-747.54

Finding the Fourth Proportional to 2,208.42, 3,313.07 and 747.54

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Solution

The fourth proportional to 2,208.42, 3,313.07 and 747.54 is: 1,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.42 : 3,313.07 = 747.54 : x
  2. Step 2: Convert to fraction form
    2,208.42/3,313.07 = 747.54/x
  3. Step 3: Cross multiply
    2,208.42x = 3,313.07 × 747.54
  4. Step 4: Simplify right side
    2,208.42x = 2,476,648.61
  5. Step 5: Solve for x
    x = 2,476,648.61/2,208.42
  6. Step 6: Final answer
    x = 1,121.46

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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.