Home / 5,715.26-7,885.62-3,591.12

Finding the Fourth Proportional to 5,715.26, 7,885.62 and 3,591.12

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Solution

The fourth proportional to 5,715.26, 7,885.62 and 3,591.12 is: 4,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.26 : 7,885.62 = 3,591.12 : x
  2. Step 2: Convert to fraction form
    5,715.26/7,885.62 = 3,591.12/x
  3. Step 3: Cross multiply
    5,715.26x = 7,885.62 × 3,591.12
  4. Step 4: Simplify right side
    5,715.26x = 28,318,207.69
  5. Step 5: Solve for x
    x = 28,318,207.69/5,715.26
  6. Step 6: Final answer
    x = 4,954.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.