Home / 7,890.50-11,836.99-2,343.28

Finding the Fourth Proportional to 7,890.50, 11,836.99 and 2,343.28

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Solution

The fourth proportional to 7,890.50, 11,836.99 and 2,343.28 is: 3,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.50 : 11,836.99 = 2,343.28 : x
  2. Step 2: Convert to fraction form
    7,890.50/11,836.99 = 2,343.28/x
  3. Step 3: Cross multiply
    7,890.50x = 11,836.99 × 2,343.28
  4. Step 4: Simplify right side
    7,890.50x = 27,737,381.93
  5. Step 5: Solve for x
    x = 27,737,381.93/7,890.50
  6. Step 6: Final answer
    x = 3,515.29

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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.