Home / 5,243.08-7,869.48-2,647.84

Finding the Fourth Proportional to 5,243.08, 7,869.48 and 2,647.84

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Solution

The fourth proportional to 5,243.08, 7,869.48 and 2,647.84 is: 3,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.08 : 7,869.48 = 2,647.84 : x
  2. Step 2: Convert to fraction form
    5,243.08/7,869.48 = 2,647.84/x
  3. Step 3: Cross multiply
    5,243.08x = 7,869.48 × 2,647.84
  4. Step 4: Simplify right side
    5,243.08x = 20,837,123.92
  5. Step 5: Solve for x
    x = 20,837,123.92/5,243.08
  6. Step 6: Final answer
    x = 3,974.21

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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.