Home / 2,689.24-4,029-2,408.98

Finding the Fourth Proportional to 2,689.24, 4,029 and 2,408.98

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Solution

The fourth proportional to 2,689.24, 4,029 and 2,408.98 is: 3,609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.24 : 4,029 = 2,408.98 : x
  2. Step 2: Convert to fraction form
    2,689.24/4,029 = 2,408.98/x
  3. Step 3: Cross multiply
    2,689.24x = 4,029 × 2,408.98
  4. Step 4: Simplify right side
    2,689.24x = 9,705,780.42
  5. Step 5: Solve for x
    x = 9,705,780.42/2,689.24
  6. Step 6: Final answer
    x = 3,609.12

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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.