Home / 2,718.36-4,078.49-1,258.61

Finding the Fourth Proportional to 2,718.36, 4,078.49 and 1,258.61

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Solution

The fourth proportional to 2,718.36, 4,078.49 and 1,258.61 is: 1,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.36 : 4,078.49 = 1,258.61 : x
  2. Step 2: Convert to fraction form
    2,718.36/4,078.49 = 1,258.61/x
  3. Step 3: Cross multiply
    2,718.36x = 4,078.49 × 1,258.61
  4. Step 4: Simplify right side
    2,718.36x = 5,133,201.61
  5. Step 5: Solve for x
    x = 5,133,201.61/2,718.36
  6. Step 6: Final answer
    x = 1,888.35

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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.