Home / 5,081.38-7,623.30-1,618.62

Finding the Fourth Proportional to 5,081.38, 7,623.30 and 1,618.62

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Solution

The fourth proportional to 5,081.38, 7,623.30 and 1,618.62 is: 2,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.38 : 7,623.30 = 1,618.62 : x
  2. Step 2: Convert to fraction form
    5,081.38/7,623.30 = 1,618.62/x
  3. Step 3: Cross multiply
    5,081.38x = 7,623.30 × 1,618.62
  4. Step 4: Simplify right side
    5,081.38x = 12,339,225.85
  5. Step 5: Solve for x
    x = 12,339,225.85/5,081.38
  6. Step 6: Final answer
    x = 2,428.32

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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.