Home / 2,867.28-3,955.91-1,671.99

Finding the Fourth Proportional to 2,867.28, 3,955.91 and 1,671.99

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Solution

The fourth proportional to 2,867.28, 3,955.91 and 1,671.99 is: 2,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.28 : 3,955.91 = 1,671.99 : x
  2. Step 2: Convert to fraction form
    2,867.28/3,955.91 = 1,671.99/x
  3. Step 3: Cross multiply
    2,867.28x = 3,955.91 × 1,671.99
  4. Step 4: Simplify right side
    2,867.28x = 6,614,241.96
  5. Step 5: Solve for x
    x = 6,614,241.96/2,867.28
  6. Step 6: Final answer
    x = 2,306.80

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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.