Home / 6,922.70-10,382.52-1,991.24

Finding the Fourth Proportional to 6,922.70, 10,382.52 and 1,991.24

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Solution

The fourth proportional to 6,922.70, 10,382.52 and 1,991.24 is: 2,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.70 : 10,382.52 = 1,991.24 : x
  2. Step 2: Convert to fraction form
    6,922.70/10,382.52 = 1,991.24/x
  3. Step 3: Cross multiply
    6,922.70x = 10,382.52 × 1,991.24
  4. Step 4: Simplify right side
    6,922.70x = 20,674,089.12
  5. Step 5: Solve for x
    x = 20,674,089.12/6,922.70
  6. Step 6: Final answer
    x = 2,986.42

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1.5x scale

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.