Home / 2,599.78-3,898.97-1,211.76

Finding the Fourth Proportional to 2,599.78, 3,898.97 and 1,211.76

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Solution

The fourth proportional to 2,599.78, 3,898.97 and 1,211.76 is: 1,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.78 : 3,898.97 = 1,211.76 : x
  2. Step 2: Convert to fraction form
    2,599.78/3,898.97 = 1,211.76/x
  3. Step 3: Cross multiply
    2,599.78x = 3,898.97 × 1,211.76
  4. Step 4: Simplify right side
    2,599.78x = 4,724,614.37
  5. Step 5: Solve for x
    x = 4,724,614.37/2,599.78
  6. Step 6: Final answer
    x = 1,817.31

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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.