Home / 7,191.37-10,784.93-3,679.21

Finding the Fourth Proportional to 7,191.37, 10,784.93 and 3,679.21

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Solution

The fourth proportional to 7,191.37, 10,784.93 and 3,679.21 is: 5,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.37 : 10,784.93 = 3,679.21 : x
  2. Step 2: Convert to fraction form
    7,191.37/10,784.93 = 3,679.21/x
  3. Step 3: Cross multiply
    7,191.37x = 10,784.93 × 3,679.21
  4. Step 4: Simplify right side
    7,191.37x = 39,680,022.31
  5. Step 5: Solve for x
    x = 39,680,022.31/7,191.37
  6. Step 6: Final answer
    x = 5,517.73

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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.