Home / 2,213.38-3,317.67-1,115.62

Finding the Fourth Proportional to 2,213.38, 3,317.67 and 1,115.62

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Solution

The fourth proportional to 2,213.38, 3,317.67 and 1,115.62 is: 1,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.38 : 3,317.67 = 1,115.62 : x
  2. Step 2: Convert to fraction form
    2,213.38/3,317.67 = 1,115.62/x
  3. Step 3: Cross multiply
    2,213.38x = 3,317.67 × 1,115.62
  4. Step 4: Simplify right side
    2,213.38x = 3,701,259.01
  5. Step 5: Solve for x
    x = 3,701,259.01/2,213.38
  6. Step 6: Final answer
    x = 1,672.22

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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.