Home / 2,212.11-3,052.50-1,255.07

Finding the Fourth Proportional to 2,212.11, 3,052.50 and 1,255.07

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Solution

The fourth proportional to 2,212.11, 3,052.50 and 1,255.07 is: 1,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.11 : 3,052.50 = 1,255.07 : x
  2. Step 2: Convert to fraction form
    2,212.11/3,052.50 = 1,255.07/x
  3. Step 3: Cross multiply
    2,212.11x = 3,052.50 × 1,255.07
  4. Step 4: Simplify right side
    2,212.11x = 3,831,085.91
  5. Step 5: Solve for x
    x = 3,831,085.91/2,212.11
  6. Step 6: Final answer
    x = 1,731.87

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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.