Home / 2,203.18-3,305.27-742.35

Finding the Fourth Proportional to 2,203.18, 3,305.27 and 742.35

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Solution

The fourth proportional to 2,203.18, 3,305.27 and 742.35 is: 1,113.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.18 : 3,305.27 = 742.35 : x
  2. Step 2: Convert to fraction form
    2,203.18/3,305.27 = 742.35/x
  3. Step 3: Cross multiply
    2,203.18x = 3,305.27 × 742.35
  4. Step 4: Simplify right side
    2,203.18x = 2,453,667.18
  5. Step 5: Solve for x
    x = 2,453,667.18/2,203.18
  6. Step 6: Final answer
    x = 1,113.69

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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.