Home / 3,149.63-4,718.28-2,415.61

Finding the Fourth Proportional to 3,149.63, 4,718.28 and 2,415.61

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Solution

The fourth proportional to 3,149.63, 4,718.28 and 2,415.61 is: 3,618.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.63 : 4,718.28 = 2,415.61 : x
  2. Step 2: Convert to fraction form
    3,149.63/4,718.28 = 2,415.61/x
  3. Step 3: Cross multiply
    3,149.63x = 4,718.28 × 2,415.61
  4. Step 4: Simplify right side
    3,149.63x = 11,397,524.35
  5. Step 5: Solve for x
    x = 11,397,524.35/3,149.63
  6. Step 6: Final answer
    x = 3,618.69

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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.