Home / 7,381.88-11,074.64-2,187.75

Finding the Fourth Proportional to 7,381.88, 11,074.64 and 2,187.75

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Solution

The fourth proportional to 7,381.88, 11,074.64 and 2,187.75 is: 3,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.88 : 11,074.64 = 2,187.75 : x
  2. Step 2: Convert to fraction form
    7,381.88/11,074.64 = 2,187.75/x
  3. Step 3: Cross multiply
    7,381.88x = 11,074.64 × 2,187.75
  4. Step 4: Simplify right side
    7,381.88x = 24,228,532.72
  5. Step 5: Solve for x
    x = 24,228,532.72/7,381.88
  6. Step 6: Final answer
    x = 3,282.17

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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.