Home / 1,908.23-2,862.33-1,258.80

Finding the Fourth Proportional to 1,908.23, 2,862.33 and 1,258.80

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Solution

The fourth proportional to 1,908.23, 2,862.33 and 1,258.80 is: 1,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.23 : 2,862.33 = 1,258.80 : x
  2. Step 2: Convert to fraction form
    1,908.23/2,862.33 = 1,258.80/x
  3. Step 3: Cross multiply
    1,908.23x = 2,862.33 × 1,258.80
  4. Step 4: Simplify right side
    1,908.23x = 3,603,101.00
  5. Step 5: Solve for x
    x = 3,603,101.00/1,908.23
  6. Step 6: Final answer
    x = 1,888.20

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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.