Home / 7,381.26-11,079.18-3,918.50

Finding the Fourth Proportional to 7,381.26, 11,079.18 and 3,918.50

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Solution

The fourth proportional to 7,381.26, 11,079.18 and 3,918.50 is: 5,881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.26 : 11,079.18 = 3,918.50 : x
  2. Step 2: Convert to fraction form
    7,381.26/11,079.18 = 3,918.50/x
  3. Step 3: Cross multiply
    7,381.26x = 11,079.18 × 3,918.50
  4. Step 4: Simplify right side
    7,381.26x = 43,413,766.83
  5. Step 5: Solve for x
    x = 43,413,766.83/7,381.26
  6. Step 6: Final answer
    x = 5,881.62

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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.