Home / 7,381.19-11,073.15-2,115.98

Finding the Fourth Proportional to 7,381.19, 11,073.15 and 2,115.98

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Solution

The fourth proportional to 7,381.19, 11,073.15 and 2,115.98 is: 3,174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.19 : 11,073.15 = 2,115.98 : x
  2. Step 2: Convert to fraction form
    7,381.19/11,073.15 = 2,115.98/x
  3. Step 3: Cross multiply
    7,381.19x = 11,073.15 × 2,115.98
  4. Step 4: Simplify right side
    7,381.19x = 23,430,563.94
  5. Step 5: Solve for x
    x = 23,430,563.94/7,381.19
  6. Step 6: Final answer
    x = 3,174.36

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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.