Home / 5,081.16-7,623.18-1,618.68

Finding the Fourth Proportional to 5,081.16, 7,623.18 and 1,618.68

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Solution

The fourth proportional to 5,081.16, 7,623.18 and 1,618.68 is: 2,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.16 : 7,623.18 = 1,618.68 : x
  2. Step 2: Convert to fraction form
    5,081.16/7,623.18 = 1,618.68/x
  3. Step 3: Cross multiply
    5,081.16x = 7,623.18 × 1,618.68
  4. Step 4: Simplify right side
    5,081.16x = 12,339,489.00
  5. Step 5: Solve for x
    x = 12,339,489.00/5,081.16
  6. Step 6: Final answer
    x = 2,428.48

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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.