Home / 2,865.66-3,954.33-1,687.02

Finding the Fourth Proportional to 2,865.66, 3,954.33 and 1,687.02

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Solution

The fourth proportional to 2,865.66, 3,954.33 and 1,687.02 is: 2,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.66 : 3,954.33 = 1,687.02 : x
  2. Step 2: Convert to fraction form
    2,865.66/3,954.33 = 1,687.02/x
  3. Step 3: Cross multiply
    2,865.66x = 3,954.33 × 1,687.02
  4. Step 4: Simplify right side
    2,865.66x = 6,671,033.80
  5. Step 5: Solve for x
    x = 6,671,033.80/2,865.66
  6. Step 6: Final answer
    x = 2,327.92

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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.