Home / 2,212.11-3,317.96-751.17

Finding the Fourth Proportional to 2,212.11, 3,317.96 and 751.17

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Solution

The fourth proportional to 2,212.11, 3,317.96 and 751.17 is: 1,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.11 : 3,317.96 = 751.17 : x
  2. Step 2: Convert to fraction form
    2,212.11/3,317.96 = 751.17/x
  3. Step 3: Cross multiply
    2,212.11x = 3,317.96 × 751.17
  4. Step 4: Simplify right side
    2,212.11x = 2,492,366.33
  5. Step 5: Solve for x
    x = 2,492,366.33/2,212.11
  6. Step 6: Final answer
    x = 1,126.69

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1.5x scale

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.