Home / 2,871.25-4,305.95-1,116.13

Finding the Fourth Proportional to 2,871.25, 4,305.95 and 1,116.13

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Solution

The fourth proportional to 2,871.25, 4,305.95 and 1,116.13 is: 1,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.25 : 4,305.95 = 1,116.13 : x
  2. Step 2: Convert to fraction form
    2,871.25/4,305.95 = 1,116.13/x
  3. Step 3: Cross multiply
    2,871.25x = 4,305.95 × 1,116.13
  4. Step 4: Simplify right side
    2,871.25x = 4,805,999.97
  5. Step 5: Solve for x
    x = 4,805,999.97/2,871.25
  6. Step 6: Final answer
    x = 1,673.84

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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.