Home / 7,120.44-9,826.24-3,933.69

Finding the Fourth Proportional to 7,120.44, 9,826.24 and 3,933.69

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Solution

The fourth proportional to 7,120.44, 9,826.24 and 3,933.69 is: 5,428.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.44 : 9,826.24 = 3,933.69 : x
  2. Step 2: Convert to fraction form
    7,120.44/9,826.24 = 3,933.69/x
  3. Step 3: Cross multiply
    7,120.44x = 9,826.24 × 3,933.69
  4. Step 4: Simplify right side
    7,120.44x = 38,653,382.03
  5. Step 5: Solve for x
    x = 38,653,382.03/7,120.44
  6. Step 6: Final answer
    x = 5,428.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.