Home / 7,961.46-11,938.35-3,340.02

Finding the Fourth Proportional to 7,961.46, 11,938.35 and 3,340.02

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Solution

The fourth proportional to 7,961.46, 11,938.35 and 3,340.02 is: 5,008.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.46 : 11,938.35 = 3,340.02 : x
  2. Step 2: Convert to fraction form
    7,961.46/11,938.35 = 3,340.02/x
  3. Step 3: Cross multiply
    7,961.46x = 11,938.35 × 3,340.02
  4. Step 4: Simplify right side
    7,961.46x = 39,874,327.77
  5. Step 5: Solve for x
    x = 39,874,327.77/7,961.46
  6. Step 6: Final answer
    x = 5,008.42

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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.