Home / 2,258.36-3,115.36-1,512.56

Finding the Fourth Proportional to 2,258.36, 3,115.36 and 1,512.56

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Solution

The fourth proportional to 2,258.36, 3,115.36 and 1,512.56 is: 2,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.36 : 3,115.36 = 1,512.56 : x
  2. Step 2: Convert to fraction form
    2,258.36/3,115.36 = 1,512.56/x
  3. Step 3: Cross multiply
    2,258.36x = 3,115.36 × 1,512.56
  4. Step 4: Simplify right side
    2,258.36x = 4,712,168.92
  5. Step 5: Solve for x
    x = 4,712,168.92/2,258.36
  6. Step 6: Final answer
    x = 2,086.54

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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.