Home / 7,381.82-11,072.73-2,188.10

Finding the Fourth Proportional to 7,381.82, 11,072.73 and 2,188.10

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Solution

The fourth proportional to 7,381.82, 11,072.73 and 2,188.10 is: 3,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.82 : 11,072.73 = 2,188.10 : x
  2. Step 2: Convert to fraction form
    7,381.82/11,072.73 = 2,188.10/x
  3. Step 3: Cross multiply
    7,381.82x = 11,072.73 × 2,188.10
  4. Step 4: Simplify right side
    7,381.82x = 24,228,240.51
  5. Step 5: Solve for x
    x = 24,228,240.51/7,381.82
  6. Step 6: Final answer
    x = 3,282.15

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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.