Home / 3,391.06-4,678.56-2,211.91

Finding the Fourth Proportional to 3,391.06, 4,678.56 and 2,211.91

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Solution

The fourth proportional to 3,391.06, 4,678.56 and 2,211.91 is: 3,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.06 : 4,678.56 = 2,211.91 : x
  2. Step 2: Convert to fraction form
    3,391.06/4,678.56 = 2,211.91/x
  3. Step 3: Cross multiply
    3,391.06x = 4,678.56 × 2,211.91
  4. Step 4: Simplify right side
    3,391.06x = 10,348,553.65
  5. Step 5: Solve for x
    x = 10,348,553.65/3,391.06
  6. Step 6: Final answer
    x = 3,051.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.