Home / 7,958.31-11,938.82-3,578.84

Finding the Fourth Proportional to 7,958.31, 11,938.82 and 3,578.84

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Solution

The fourth proportional to 7,958.31, 11,938.82 and 3,578.84 is: 5,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.31 : 11,938.82 = 3,578.84 : x
  2. Step 2: Convert to fraction form
    7,958.31/11,938.82 = 3,578.84/x
  3. Step 3: Cross multiply
    7,958.31x = 11,938.82 × 3,578.84
  4. Step 4: Simplify right side
    7,958.31x = 42,727,138.52
  5. Step 5: Solve for x
    x = 42,727,138.52/7,958.31
  6. Step 6: Final answer
    x = 5,368.87

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1.5x scale

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.