Home / 3,610.66-4,982.75-2,118.61

Finding the Fourth Proportional to 3,610.66, 4,982.75 and 2,118.61

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Solution

The fourth proportional to 3,610.66, 4,982.75 and 2,118.61 is: 2,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.66 : 4,982.75 = 2,118.61 : x
  2. Step 2: Convert to fraction form
    3,610.66/4,982.75 = 2,118.61/x
  3. Step 3: Cross multiply
    3,610.66x = 4,982.75 × 2,118.61
  4. Step 4: Simplify right side
    3,610.66x = 10,556,479.53
  5. Step 5: Solve for x
    x = 10,556,479.53/3,610.66
  6. Step 6: Final answer
    x = 2,923.70

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1.5x scale

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.