Home / 7,816.77-11,717.87-2,619

Finding the Fourth Proportional to 7,816.77, 11,717.87 and 2,619

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Solution

The fourth proportional to 7,816.77, 11,717.87 and 2,619 is: 3,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.77 : 11,717.87 = 2,619 : x
  2. Step 2: Convert to fraction form
    7,816.77/11,717.87 = 2,619/x
  3. Step 3: Cross multiply
    7,816.77x = 11,717.87 × 2,619
  4. Step 4: Simplify right side
    7,816.77x = 30,689,088.44
  5. Step 5: Solve for x
    x = 30,689,088.44/7,816.77
  6. Step 6: Final answer
    x = 3,926.06

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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.