Home / 7,318.50-10,979.13-2,936.30

Finding the Fourth Proportional to 7,318.50, 10,979.13 and 2,936.30

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Solution

The fourth proportional to 7,318.50, 10,979.13 and 2,936.30 is: 4,405.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.50 : 10,979.13 = 2,936.30 : x
  2. Step 2: Convert to fraction form
    7,318.50/10,979.13 = 2,936.30/x
  3. Step 3: Cross multiply
    7,318.50x = 10,979.13 × 2,936.30
  4. Step 4: Simplify right side
    7,318.50x = 32,237,964.52
  5. Step 5: Solve for x
    x = 32,237,964.52/7,318.50
  6. Step 6: Final answer
    x = 4,405.00

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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.