Home / 2,211.39-3,051.77-1,216.73

Finding the Fourth Proportional to 2,211.39, 3,051.77 and 1,216.73

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Solution

The fourth proportional to 2,211.39, 3,051.77 and 1,216.73 is: 1,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.39 : 3,051.77 = 1,216.73 : x
  2. Step 2: Convert to fraction form
    2,211.39/3,051.77 = 1,216.73/x
  3. Step 3: Cross multiply
    2,211.39x = 3,051.77 × 1,216.73
  4. Step 4: Simplify right side
    2,211.39x = 3,713,167.90
  5. Step 5: Solve for x
    x = 3,713,167.90/2,211.39
  6. Step 6: Final answer
    x = 1,679.11

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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.