Home / 2,213.85-3,056.55-1,375.47

Finding the Fourth Proportional to 2,213.85, 3,056.55 and 1,375.47

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Solution

The fourth proportional to 2,213.85, 3,056.55 and 1,375.47 is: 1,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.85 : 3,056.55 = 1,375.47 : x
  2. Step 2: Convert to fraction form
    2,213.85/3,056.55 = 1,375.47/x
  3. Step 3: Cross multiply
    2,213.85x = 3,056.55 × 1,375.47
  4. Step 4: Simplify right side
    2,213.85x = 4,204,192.83
  5. Step 5: Solve for x
    x = 4,204,192.83/2,213.85
  6. Step 6: Final answer
    x = 1,899.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.