Home / 2,718.20-4,078.38-1,258.04

Finding the Fourth Proportional to 2,718.20, 4,078.38 and 1,258.04

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Solution

The fourth proportional to 2,718.20, 4,078.38 and 1,258.04 is: 1,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.20 : 4,078.38 = 1,258.04 : x
  2. Step 2: Convert to fraction form
    2,718.20/4,078.38 = 1,258.04/x
  3. Step 3: Cross multiply
    2,718.20x = 4,078.38 × 1,258.04
  4. Step 4: Simplify right side
    2,718.20x = 5,130,744.78
  5. Step 5: Solve for x
    x = 5,130,744.78/2,718.20
  6. Step 6: Final answer
    x = 1,887.56

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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.