Home / 5,230.77-7,845.20-2,110.65

Finding the Fourth Proportional to 5,230.77, 7,845.20 and 2,110.65

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Solution

The fourth proportional to 5,230.77, 7,845.20 and 2,110.65 is: 3,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.77 : 7,845.20 = 2,110.65 : x
  2. Step 2: Convert to fraction form
    5,230.77/7,845.20 = 2,110.65/x
  3. Step 3: Cross multiply
    5,230.77x = 7,845.20 × 2,110.65
  4. Step 4: Simplify right side
    5,230.77x = 16,558,471.38
  5. Step 5: Solve for x
    x = 16,558,471.38/5,230.77
  6. Step 6: Final answer
    x = 3,165.59

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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.