Home / 5,425.05-8,138.77-2,307.72

Finding the Fourth Proportional to 5,425.05, 8,138.77 and 2,307.72

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Solution

The fourth proportional to 5,425.05, 8,138.77 and 2,307.72 is: 3,462.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.05 : 8,138.77 = 2,307.72 : x
  2. Step 2: Convert to fraction form
    5,425.05/8,138.77 = 2,307.72/x
  3. Step 3: Cross multiply
    5,425.05x = 8,138.77 × 2,307.72
  4. Step 4: Simplify right side
    5,425.05x = 18,782,002.30
  5. Step 5: Solve for x
    x = 18,782,002.30/5,425.05
  6. Step 6: Final answer
    x = 3,462.09

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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.