Home / 2,219.12-3,062.41-1,224.44

Finding the Fourth Proportional to 2,219.12, 3,062.41 and 1,224.44

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Solution

The fourth proportional to 2,219.12, 3,062.41 and 1,224.44 is: 1,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.12 : 3,062.41 = 1,224.44 : x
  2. Step 2: Convert to fraction form
    2,219.12/3,062.41 = 1,224.44/x
  3. Step 3: Cross multiply
    2,219.12x = 3,062.41 × 1,224.44
  4. Step 4: Simplify right side
    2,219.12x = 3,749,737.30
  5. Step 5: Solve for x
    x = 3,749,737.30/2,219.12
  6. Step 6: Final answer
    x = 1,689.74

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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.