Home / 2,258.40-3,387.60-2,236.80

Finding the Fourth Proportional to 2,258.40, 3,387.60 and 2,236.80

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Solution

The fourth proportional to 2,258.40, 3,387.60 and 2,236.80 is: 3,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.40 : 3,387.60 = 2,236.80 : x
  2. Step 2: Convert to fraction form
    2,258.40/3,387.60 = 2,236.80/x
  3. Step 3: Cross multiply
    2,258.40x = 3,387.60 × 2,236.80
  4. Step 4: Simplify right side
    2,258.40x = 7,577,383.68
  5. Step 5: Solve for x
    x = 7,577,383.68/2,258.40
  6. Step 6: Final answer
    x = 3,355.20

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1.5x scale

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.