Home / 2,862.39-4,292.31-1,382.34

Finding the Fourth Proportional to 2,862.39, 4,292.31 and 1,382.34

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Solution

The fourth proportional to 2,862.39, 4,292.31 and 1,382.34 is: 2,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.39 : 4,292.31 = 1,382.34 : x
  2. Step 2: Convert to fraction form
    2,862.39/4,292.31 = 1,382.34/x
  3. Step 3: Cross multiply
    2,862.39x = 4,292.31 × 1,382.34
  4. Step 4: Simplify right side
    2,862.39x = 5,933,431.81
  5. Step 5: Solve for x
    x = 5,933,431.81/2,862.39
  6. Step 6: Final answer
    x = 2,072.89

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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.