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Finding the Fourth Proportional to 3,080.86, 4,251.74 and 1,822.65

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Solution

The fourth proportional to 3,080.86, 4,251.74 and 1,822.65 is: 2,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.86 : 4,251.74 = 1,822.65 : x
  2. Step 2: Convert to fraction form
    3,080.86/4,251.74 = 1,822.65/x
  3. Step 3: Cross multiply
    3,080.86x = 4,251.74 × 1,822.65
  4. Step 4: Simplify right side
    3,080.86x = 7,749,443.02
  5. Step 5: Solve for x
    x = 7,749,443.02/3,080.86
  6. Step 6: Final answer
    x = 2,515.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.