Home / 7,318.11-10,979.63-2,321.31

Finding the Fourth Proportional to 7,318.11, 10,979.63 and 2,321.31

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Solution

The fourth proportional to 7,318.11, 10,979.63 and 2,321.31 is: 3,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.11 : 10,979.63 = 2,321.31 : x
  2. Step 2: Convert to fraction form
    7,318.11/10,979.63 = 2,321.31/x
  3. Step 3: Cross multiply
    7,318.11x = 10,979.63 × 2,321.31
  4. Step 4: Simplify right side
    7,318.11x = 25,487,124.92
  5. Step 5: Solve for x
    x = 25,487,124.92/7,318.11
  6. Step 6: Final answer
    x = 3,482.75

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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.