Home / 2,258.27-3,120.38-1,957.20

Finding the Fourth Proportional to 2,258.27, 3,120.38 and 1,957.20

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Solution

The fourth proportional to 2,258.27, 3,120.38 and 1,957.20 is: 2,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.27 : 3,120.38 = 1,957.20 : x
  2. Step 2: Convert to fraction form
    2,258.27/3,120.38 = 1,957.20/x
  3. Step 3: Cross multiply
    2,258.27x = 3,120.38 × 1,957.20
  4. Step 4: Simplify right side
    2,258.27x = 6,107,197.95
  5. Step 5: Solve for x
    x = 6,107,197.95/2,258.27
  6. Step 6: Final answer
    x = 2,704.38

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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.