Home / 1,862.19-2,569.32-1,198.80

Finding the Fourth Proportional to 1,862.19, 2,569.32 and 1,198.80

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Solution

The fourth proportional to 1,862.19, 2,569.32 and 1,198.80 is: 1,654.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.19 : 2,569.32 = 1,198.80 : x
  2. Step 2: Convert to fraction form
    1,862.19/2,569.32 = 1,198.80/x
  3. Step 3: Cross multiply
    1,862.19x = 2,569.32 × 1,198.80
  4. Step 4: Simplify right side
    1,862.19x = 3,080,100.82
  5. Step 5: Solve for x
    x = 3,080,100.82/1,862.19
  6. Step 6: Final answer
    x = 1,654.02

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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.