Home / 2,271.30-3,408.64-1,687.66

Finding the Fourth Proportional to 2,271.30, 3,408.64 and 1,687.66

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Solution

The fourth proportional to 2,271.30, 3,408.64 and 1,687.66 is: 2,532.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.30 : 3,408.64 = 1,687.66 : x
  2. Step 2: Convert to fraction form
    2,271.30/3,408.64 = 1,687.66/x
  3. Step 3: Cross multiply
    2,271.30x = 3,408.64 × 1,687.66
  4. Step 4: Simplify right side
    2,271.30x = 5,752,625.38
  5. Step 5: Solve for x
    x = 5,752,625.38/2,271.30
  6. Step 6: Final answer
    x = 2,532.75

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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.