Home / 5,239.08-7,857-1,540.38

Finding the Fourth Proportional to 5,239.08, 7,857 and 1,540.38

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Solution

The fourth proportional to 5,239.08, 7,857 and 1,540.38 is: 2,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.08 : 7,857 = 1,540.38 : x
  2. Step 2: Convert to fraction form
    5,239.08/7,857 = 1,540.38/x
  3. Step 3: Cross multiply
    5,239.08x = 7,857 × 1,540.38
  4. Step 4: Simplify right side
    5,239.08x = 12,102,765.66
  5. Step 5: Solve for x
    x = 12,102,765.66/5,239.08
  6. Step 6: Final answer
    x = 2,310.09

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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.