Home / 2,208.36-3,312.56-747.52

Finding the Fourth Proportional to 2,208.36, 3,312.56 and 747.52

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Solution

The fourth proportional to 2,208.36, 3,312.56 and 747.52 is: 1,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.36 : 3,312.56 = 747.52 : x
  2. Step 2: Convert to fraction form
    2,208.36/3,312.56 = 747.52/x
  3. Step 3: Cross multiply
    2,208.36x = 3,312.56 × 747.52
  4. Step 4: Simplify right side
    2,208.36x = 2,476,204.85
  5. Step 5: Solve for x
    x = 2,476,204.85/2,208.36
  6. Step 6: Final answer
    x = 1,121.29

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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.