Home / 5,322.29-7,979.54-1,811.36

Finding the Fourth Proportional to 5,322.29, 7,979.54 and 1,811.36

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Solution

The fourth proportional to 5,322.29, 7,979.54 and 1,811.36 is: 2,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322.29 : 7,979.54 = 1,811.36 : x
  2. Step 2: Convert to fraction form
    5,322.29/7,979.54 = 1,811.36/x
  3. Step 3: Cross multiply
    5,322.29x = 7,979.54 × 1,811.36
  4. Step 4: Simplify right side
    5,322.29x = 14,453,770.62
  5. Step 5: Solve for x
    x = 14,453,770.62/5,322.29
  6. Step 6: Final answer
    x = 2,715.71

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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.