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Finding the Fourth Proportional to 5,360.42, 8,039.64 and 1,850.42

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Solution

The fourth proportional to 5,360.42, 8,039.64 and 1,850.42 is: 2,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.42 : 8,039.64 = 1,850.42 : x
  2. Step 2: Convert to fraction form
    5,360.42/8,039.64 = 1,850.42/x
  3. Step 3: Cross multiply
    5,360.42x = 8,039.64 × 1,850.42
  4. Step 4: Simplify right side
    5,360.42x = 14,876,710.65
  5. Step 5: Solve for x
    x = 14,876,710.65/5,360.42
  6. Step 6: Final answer
    x = 2,775.29

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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.