Home / 2,255.45-3,114.65-2,132.73

Finding the Fourth Proportional to 2,255.45, 3,114.65 and 2,132.73

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Solution

The fourth proportional to 2,255.45, 3,114.65 and 2,132.73 is: 2,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.45 : 3,114.65 = 2,132.73 : x
  2. Step 2: Convert to fraction form
    2,255.45/3,114.65 = 2,132.73/x
  3. Step 3: Cross multiply
    2,255.45x = 3,114.65 × 2,132.73
  4. Step 4: Simplify right side
    2,255.45x = 6,642,712.83
  5. Step 5: Solve for x
    x = 6,642,712.83/2,255.45
  6. Step 6: Final answer
    x = 2,945.19

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1.5x scale

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.