Home / 7,320.77-10,979.91-2,054.57

Finding the Fourth Proportional to 7,320.77, 10,979.91 and 2,054.57

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Solution

The fourth proportional to 7,320.77, 10,979.91 and 2,054.57 is: 3,081.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.77 : 10,979.91 = 2,054.57 : x
  2. Step 2: Convert to fraction form
    7,320.77/10,979.91 = 2,054.57/x
  3. Step 3: Cross multiply
    7,320.77x = 10,979.91 × 2,054.57
  4. Step 4: Simplify right side
    7,320.77x = 22,558,993.69
  5. Step 5: Solve for x
    x = 22,558,993.69/7,320.77
  6. Step 6: Final answer
    x = 3,081.51

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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.