Home / 7,814.78-11,719.38-2,266.68

Finding the Fourth Proportional to 7,814.78, 11,719.38 and 2,266.68

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Solution

The fourth proportional to 7,814.78, 11,719.38 and 2,266.68 is: 3,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.78 : 11,719.38 = 2,266.68 : x
  2. Step 2: Convert to fraction form
    7,814.78/11,719.38 = 2,266.68/x
  3. Step 3: Cross multiply
    7,814.78x = 11,719.38 × 2,266.68
  4. Step 4: Simplify right side
    7,814.78x = 26,564,136.71
  5. Step 5: Solve for x
    x = 26,564,136.71/7,814.78
  6. Step 6: Final answer
    x = 3,399.22

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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.