Home / 1,637.29-2,258.44-1,238.77

Finding the Fourth Proportional to 1,637.29, 2,258.44 and 1,238.77

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Solution

The fourth proportional to 1,637.29, 2,258.44 and 1,238.77 is: 1,708.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.29 : 2,258.44 = 1,238.77 : x
  2. Step 2: Convert to fraction form
    1,637.29/2,258.44 = 1,238.77/x
  3. Step 3: Cross multiply
    1,637.29x = 2,258.44 × 1,238.77
  4. Step 4: Simplify right side
    1,637.29x = 2,797,687.72
  5. Step 5: Solve for x
    x = 2,797,687.72/1,637.29
  6. Step 6: Final answer
    x = 1,708.73

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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.