Home / 2,818.25-4,228.37-1,258.11

Finding the Fourth Proportional to 2,818.25, 4,228.37 and 1,258.11

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Solution

The fourth proportional to 2,818.25, 4,228.37 and 1,258.11 is: 1,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.25 : 4,228.37 = 1,258.11 : x
  2. Step 2: Convert to fraction form
    2,818.25/4,228.37 = 1,258.11/x
  3. Step 3: Cross multiply
    2,818.25x = 4,228.37 × 1,258.11
  4. Step 4: Simplify right side
    2,818.25x = 5,319,754.58
  5. Step 5: Solve for x
    x = 5,319,754.58/2,818.25
  6. Step 6: Final answer
    x = 1,887.61

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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.