Home / 2,255.21-3,383.13-695.34

Finding the Fourth Proportional to 2,255.21, 3,383.13 and 695.34

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Solution

The fourth proportional to 2,255.21, 3,383.13 and 695.34 is: 1,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.21 : 3,383.13 = 695.34 : x
  2. Step 2: Convert to fraction form
    2,255.21/3,383.13 = 695.34/x
  3. Step 3: Cross multiply
    2,255.21x = 3,383.13 × 695.34
  4. Step 4: Simplify right side
    2,255.21x = 2,352,425.61
  5. Step 5: Solve for x
    x = 2,352,425.61/2,255.21
  6. Step 6: Final answer
    x = 1,043.11

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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.