Home / 7,621.98-11,432.66-2,939.98

Finding the Fourth Proportional to 7,621.98, 11,432.66 and 2,939.98

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Solution

The fourth proportional to 7,621.98, 11,432.66 and 2,939.98 is: 4,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.98 : 11,432.66 = 2,939.98 : x
  2. Step 2: Convert to fraction form
    7,621.98/11,432.66 = 2,939.98/x
  3. Step 3: Cross multiply
    7,621.98x = 11,432.66 × 2,939.98
  4. Step 4: Simplify right side
    7,621.98x = 33,611,791.75
  5. Step 5: Solve for x
    x = 33,611,791.75/7,621.98
  6. Step 6: Final answer
    x = 4,409.85

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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.