Home / 7,320.27-10,979.26-2,389.89

Finding the Fourth Proportional to 7,320.27, 10,979.26 and 2,389.89

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Solution

The fourth proportional to 7,320.27, 10,979.26 and 2,389.89 is: 3,584.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.27 : 10,979.26 = 2,389.89 : x
  2. Step 2: Convert to fraction form
    7,320.27/10,979.26 = 2,389.89/x
  3. Step 3: Cross multiply
    7,320.27x = 10,979.26 × 2,389.89
  4. Step 4: Simplify right side
    7,320.27x = 26,239,210.56
  5. Step 5: Solve for x
    x = 26,239,210.56/7,320.27
  6. Step 6: Final answer
    x = 3,584.46

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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.