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Finding the Fourth Proportional to 5,360.31, 8,040.20 and 1,850.31

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Solution

The fourth proportional to 5,360.31, 8,040.20 and 1,850.31 is: 2,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.31 : 8,040.20 = 1,850.31 : x
  2. Step 2: Convert to fraction form
    5,360.31/8,040.20 = 1,850.31/x
  3. Step 3: Cross multiply
    5,360.31x = 8,040.20 × 1,850.31
  4. Step 4: Simplify right side
    5,360.31x = 14,876,853.21
  5. Step 5: Solve for x
    x = 14,876,853.21/5,360.31
  6. Step 6: Final answer
    x = 2,775.37

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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.