Home / 3,110.12-4,291.62-2,116.66

Finding the Fourth Proportional to 3,110.12, 4,291.62 and 2,116.66

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Solution

The fourth proportional to 3,110.12, 4,291.62 and 2,116.66 is: 2,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.12 : 4,291.62 = 2,116.66 : x
  2. Step 2: Convert to fraction form
    3,110.12/4,291.62 = 2,116.66/x
  3. Step 3: Cross multiply
    3,110.12x = 4,291.62 × 2,116.66
  4. Step 4: Simplify right side
    3,110.12x = 9,083,900.39
  5. Step 5: Solve for x
    x = 9,083,900.39/3,110.12
  6. Step 6: Final answer
    x = 2,920.76

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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.