Home / 7,320.42-10,979.46-2,125.08

Finding the Fourth Proportional to 7,320.42, 10,979.46 and 2,125.08

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Solution

The fourth proportional to 7,320.42, 10,979.46 and 2,125.08 is: 3,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.42 : 10,979.46 = 2,125.08 : x
  2. Step 2: Convert to fraction form
    7,320.42/10,979.46 = 2,125.08/x
  3. Step 3: Cross multiply
    7,320.42x = 10,979.46 × 2,125.08
  4. Step 4: Simplify right side
    7,320.42x = 23,332,230.86
  5. Step 5: Solve for x
    x = 23,332,230.86/7,320.42
  6. Step 6: Final answer
    x = 3,187.28

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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.