Home / 3,081.24-4,618.62-1,539

Finding the Fourth Proportional to 3,081.24, 4,618.62 and 1,539

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Solution

The fourth proportional to 3,081.24, 4,618.62 and 1,539 is: 2,306.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.24 : 4,618.62 = 1,539 : x
  2. Step 2: Convert to fraction form
    3,081.24/4,618.62 = 1,539/x
  3. Step 3: Cross multiply
    3,081.24x = 4,618.62 × 1,539
  4. Step 4: Simplify right side
    3,081.24x = 7,108,056.18
  5. Step 5: Solve for x
    x = 7,108,056.18/3,081.24
  6. Step 6: Final answer
    x = 2,306.88

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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.