Home / 2,251.12-3,351.74-2,220.40

Finding the Fourth Proportional to 2,251.12, 3,351.74 and 2,220.40

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Solution

The fourth proportional to 2,251.12, 3,351.74 and 2,220.40 is: 3,306.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.12 : 3,351.74 = 2,220.40 : x
  2. Step 2: Convert to fraction form
    2,251.12/3,351.74 = 2,220.40/x
  3. Step 3: Cross multiply
    2,251.12x = 3,351.74 × 2,220.40
  4. Step 4: Simplify right side
    2,251.12x = 7,442,203.50
  5. Step 5: Solve for x
    x = 7,442,203.50/2,251.12
  6. Step 6: Final answer
    x = 3,306.00

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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.