Home / 7,311.30-10,968.78-2,381.22

Finding the Fourth Proportional to 7,311.30, 10,968.78 and 2,381.22

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Solution

The fourth proportional to 7,311.30, 10,968.78 and 2,381.22 is: 3,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.30 : 10,968.78 = 2,381.22 : x
  2. Step 2: Convert to fraction form
    7,311.30/10,968.78 = 2,381.22/x
  3. Step 3: Cross multiply
    7,311.30x = 10,968.78 × 2,381.22
  4. Step 4: Simplify right side
    7,311.30x = 26,119,078.31
  5. Step 5: Solve for x
    x = 26,119,078.31/7,311.30
  6. Step 6: Final answer
    x = 3,572.43

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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.