Home / 7,382.42-11,073.72-2,188.40

Finding the Fourth Proportional to 7,382.42, 11,073.72 and 2,188.40

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Solution

The fourth proportional to 7,382.42, 11,073.72 and 2,188.40 is: 3,282.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.42 : 11,073.72 = 2,188.40 : x
  2. Step 2: Convert to fraction form
    7,382.42/11,073.72 = 2,188.40/x
  3. Step 3: Cross multiply
    7,382.42x = 11,073.72 × 2,188.40
  4. Step 4: Simplify right side
    7,382.42x = 24,233,728.85
  5. Step 5: Solve for x
    x = 24,233,728.85/7,382.42
  6. Step 6: Final answer
    x = 3,282.63

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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.