Home / 2,211.16-3,316.38-750.28

Finding the Fourth Proportional to 2,211.16, 3,316.38 and 750.28

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Solution

The fourth proportional to 2,211.16, 3,316.38 and 750.28 is: 1,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.16 : 3,316.38 = 750.28 : x
  2. Step 2: Convert to fraction form
    2,211.16/3,316.38 = 750.28/x
  3. Step 3: Cross multiply
    2,211.16x = 3,316.38 × 750.28
  4. Step 4: Simplify right side
    2,211.16x = 2,488,213.59
  5. Step 5: Solve for x
    x = 2,488,213.59/2,211.16
  6. Step 6: Final answer
    x = 1,125.30

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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.