Home / 7,318.68-10,979.40-2,936.48

Finding the Fourth Proportional to 7,318.68, 10,979.40 and 2,936.48

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Solution

The fourth proportional to 7,318.68, 10,979.40 and 2,936.48 is: 4,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.68 : 10,979.40 = 2,936.48 : x
  2. Step 2: Convert to fraction form
    7,318.68/10,979.40 = 2,936.48/x
  3. Step 3: Cross multiply
    7,318.68x = 10,979.40 × 2,936.48
  4. Step 4: Simplify right side
    7,318.68x = 32,240,733.62
  5. Step 5: Solve for x
    x = 32,240,733.62/7,318.68
  6. Step 6: Final answer
    x = 4,405.27

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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.