Home / 2,211.10-3,316.46-750.10

Finding the Fourth Proportional to 2,211.10, 3,316.46 and 750.10

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Solution

The fourth proportional to 2,211.10, 3,316.46 and 750.10 is: 1,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.10 : 3,316.46 = 750.10 : x
  2. Step 2: Convert to fraction form
    2,211.10/3,316.46 = 750.10/x
  3. Step 3: Cross multiply
    2,211.10x = 3,316.46 × 750.10
  4. Step 4: Simplify right side
    2,211.10x = 2,487,676.65
  5. Step 5: Solve for x
    x = 2,487,676.65/2,211.10
  6. Step 6: Final answer
    x = 1,125.09

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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.