Home / 2,254.12-3,356.05-2,221.72

Finding the Fourth Proportional to 2,254.12, 3,356.05 and 2,221.72

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Solution

The fourth proportional to 2,254.12, 3,356.05 and 2,221.72 is: 3,307.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.12 : 3,356.05 = 2,221.72 : x
  2. Step 2: Convert to fraction form
    2,254.12/3,356.05 = 2,221.72/x
  3. Step 3: Cross multiply
    2,254.12x = 3,356.05 × 2,221.72
  4. Step 4: Simplify right side
    2,254.12x = 7,456,203.41
  5. Step 5: Solve for x
    x = 7,456,203.41/2,254.12
  6. Step 6: Final answer
    x = 3,307.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.