Home / 7,879.17-11,814.56-2,331.69

Finding the Fourth Proportional to 7,879.17, 11,814.56 and 2,331.69

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Solution

The fourth proportional to 7,879.17, 11,814.56 and 2,331.69 is: 3,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.17 : 11,814.56 = 2,331.69 : x
  2. Step 2: Convert to fraction form
    7,879.17/11,814.56 = 2,331.69/x
  3. Step 3: Cross multiply
    7,879.17x = 11,814.56 × 2,331.69
  4. Step 4: Simplify right side
    7,879.17x = 27,547,844.19
  5. Step 5: Solve for x
    x = 27,547,844.19/7,879.17
  6. Step 6: Final answer
    x = 3,496.29

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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.