Home / 2,718.32-4,078.56-1,258.16

Finding the Fourth Proportional to 2,718.32, 4,078.56 and 1,258.16

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Solution

The fourth proportional to 2,718.32, 4,078.56 and 1,258.16 is: 1,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.32 : 4,078.56 = 1,258.16 : x
  2. Step 2: Convert to fraction form
    2,718.32/4,078.56 = 1,258.16/x
  3. Step 3: Cross multiply
    2,718.32x = 4,078.56 × 1,258.16
  4. Step 4: Simplify right side
    2,718.32x = 5,131,481.05
  5. Step 5: Solve for x
    x = 5,131,481.05/2,718.32
  6. Step 6: Final answer
    x = 1,887.74

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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.