Home / 2,212.67-3,321.06-1,117.81

Finding the Fourth Proportional to 2,212.67, 3,321.06 and 1,117.81

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Solution

The fourth proportional to 2,212.67, 3,321.06 and 1,117.81 is: 1,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.67 : 3,321.06 = 1,117.81 : x
  2. Step 2: Convert to fraction form
    2,212.67/3,321.06 = 1,117.81/x
  3. Step 3: Cross multiply
    2,212.67x = 3,321.06 × 1,117.81
  4. Step 4: Simplify right side
    2,212.67x = 3,712,305.78
  5. Step 5: Solve for x
    x = 3,712,305.78/2,212.67
  6. Step 6: Final answer
    x = 1,677.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.