Home / 5,679.18-8,521.20-2,757.51

Finding the Fourth Proportional to 5,679.18, 8,521.20 and 2,757.51

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Solution

The fourth proportional to 5,679.18, 8,521.20 and 2,757.51 is: 4,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.18 : 8,521.20 = 2,757.51 : x
  2. Step 2: Convert to fraction form
    5,679.18/8,521.20 = 2,757.51/x
  3. Step 3: Cross multiply
    5,679.18x = 8,521.20 × 2,757.51
  4. Step 4: Simplify right side
    5,679.18x = 23,497,294.21
  5. Step 5: Solve for x
    x = 23,497,294.21/5,679.18
  6. Step 6: Final answer
    x = 4,137.44

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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.