Home / 4,979.73-6,869.72-3,211.91

Finding the Fourth Proportional to 4,979.73, 6,869.72 and 3,211.91

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Solution

The fourth proportional to 4,979.73, 6,869.72 and 3,211.91 is: 4,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.73 : 6,869.72 = 3,211.91 : x
  2. Step 2: Convert to fraction form
    4,979.73/6,869.72 = 3,211.91/x
  3. Step 3: Cross multiply
    4,979.73x = 6,869.72 × 3,211.91
  4. Step 4: Simplify right side
    4,979.73x = 22,064,922.37
  5. Step 5: Solve for x
    x = 22,064,922.37/4,979.73
  6. Step 6: Final answer
    x = 4,430.95

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Why These Related Problems?

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