Home / 2,211.95-3,318.66-1,116.02

Finding the Fourth Proportional to 2,211.95, 3,318.66 and 1,116.02

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Solution

The fourth proportional to 2,211.95, 3,318.66 and 1,116.02 is: 1,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.95 : 3,318.66 = 1,116.02 : x
  2. Step 2: Convert to fraction form
    2,211.95/3,318.66 = 1,116.02/x
  3. Step 3: Cross multiply
    2,211.95x = 3,318.66 × 1,116.02
  4. Step 4: Simplify right side
    2,211.95x = 3,703,690.93
  5. Step 5: Solve for x
    x = 3,703,690.93/2,211.95
  6. Step 6: Final answer
    x = 1,674.40

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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.