Home / 7,381.37-11,072.69-2,116.40

Finding the Fourth Proportional to 7,381.37, 11,072.69 and 2,116.40

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Solution

The fourth proportional to 7,381.37, 11,072.69 and 2,116.40 is: 3,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.37 : 11,072.69 = 2,116.40 : x
  2. Step 2: Convert to fraction form
    7,381.37/11,072.69 = 2,116.40/x
  3. Step 3: Cross multiply
    7,381.37x = 11,072.69 × 2,116.40
  4. Step 4: Simplify right side
    7,381.37x = 23,434,175.17
  5. Step 5: Solve for x
    x = 23,434,175.17/7,381.37
  6. Step 6: Final answer
    x = 3,174.78

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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.