Home / 2,208.18-3,312.18-747.33

Finding the Fourth Proportional to 2,208.18, 3,312.18 and 747.33

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Solution

The fourth proportional to 2,208.18, 3,312.18 and 747.33 is: 1,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.18 : 3,312.18 = 747.33 : x
  2. Step 2: Convert to fraction form
    2,208.18/3,312.18 = 747.33/x
  3. Step 3: Cross multiply
    2,208.18x = 3,312.18 × 747.33
  4. Step 4: Simplify right side
    2,208.18x = 2,475,297.69
  5. Step 5: Solve for x
    x = 2,475,297.69/2,208.18
  6. Step 6: Final answer
    x = 1,120.97

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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.