Home / 2,208.06-3,312.90-747.23

Finding the Fourth Proportional to 2,208.06, 3,312.90 and 747.23

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Solution

The fourth proportional to 2,208.06, 3,312.90 and 747.23 is: 1,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.06 : 3,312.90 = 747.23 : x
  2. Step 2: Convert to fraction form
    2,208.06/3,312.90 = 747.23/x
  3. Step 3: Cross multiply
    2,208.06x = 3,312.90 × 747.23
  4. Step 4: Simplify right side
    2,208.06x = 2,475,481.70
  5. Step 5: Solve for x
    x = 2,475,481.70/2,208.06
  6. Step 6: Final answer
    x = 1,121.11

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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.