Home / 2,862.40-3,948.96-2,198.08

Finding the Fourth Proportional to 2,862.40, 3,948.96 and 2,198.08

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Solution

The fourth proportional to 2,862.40, 3,948.96 and 2,198.08 is: 3,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.40 : 3,948.96 = 2,198.08 : x
  2. Step 2: Convert to fraction form
    2,862.40/3,948.96 = 2,198.08/x
  3. Step 3: Cross multiply
    2,862.40x = 3,948.96 × 2,198.08
  4. Step 4: Simplify right side
    2,862.40x = 8,680,130.00
  5. Step 5: Solve for x
    x = 8,680,130.00/2,862.40
  6. Step 6: Final answer
    x = 3,032.47

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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.