Home / 7,311.78-10,968.84-2,381.04

Finding the Fourth Proportional to 7,311.78, 10,968.84 and 2,381.04

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Solution

The fourth proportional to 7,311.78, 10,968.84 and 2,381.04 is: 3,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.78 : 10,968.84 = 2,381.04 : x
  2. Step 2: Convert to fraction form
    7,311.78/10,968.84 = 2,381.04/x
  3. Step 3: Cross multiply
    7,311.78x = 10,968.84 × 2,381.04
  4. Step 4: Simplify right side
    7,311.78x = 26,117,246.79
  5. Step 5: Solve for x
    x = 26,117,246.79/7,311.78
  6. Step 6: Final answer
    x = 3,571.94

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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.