Home / 5,081.68-7,623.84-1,618.92

Finding the Fourth Proportional to 5,081.68, 7,623.84 and 1,618.92

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Solution

The fourth proportional to 5,081.68, 7,623.84 and 1,618.92 is: 2,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.68 : 7,623.84 = 1,618.92 : x
  2. Step 2: Convert to fraction form
    5,081.68/7,623.84 = 1,618.92/x
  3. Step 3: Cross multiply
    5,081.68x = 7,623.84 × 1,618.92
  4. Step 4: Simplify right side
    5,081.68x = 12,342,387.05
  5. Step 5: Solve for x
    x = 12,342,387.05/5,081.68
  6. Step 6: Final answer
    x = 2,428.80

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1.5x scale

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.