Home / 2,211.10-3,318.39-1,951.58

Finding the Fourth Proportional to 2,211.10, 3,318.39 and 1,951.58

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Solution

The fourth proportional to 2,211.10, 3,318.39 and 1,951.58 is: 2,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.10 : 3,318.39 = 1,951.58 : x
  2. Step 2: Convert to fraction form
    2,211.10/3,318.39 = 1,951.58/x
  3. Step 3: Cross multiply
    2,211.10x = 3,318.39 × 1,951.58
  4. Step 4: Simplify right side
    2,211.10x = 6,476,111.85
  5. Step 5: Solve for x
    x = 6,476,111.85/2,211.10
  6. Step 6: Final answer
    x = 2,928.91

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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.