Home / 5,245.40-7,863.24-2,645.32

Finding the Fourth Proportional to 5,245.40, 7,863.24 and 2,645.32

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Solution

The fourth proportional to 5,245.40, 7,863.24 and 2,645.32 is: 3,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.40 : 7,863.24 = 2,645.32 : x
  2. Step 2: Convert to fraction form
    5,245.40/7,863.24 = 2,645.32/x
  3. Step 3: Cross multiply
    5,245.40x = 7,863.24 × 2,645.32
  4. Step 4: Simplify right side
    5,245.40x = 20,800,786.04
  5. Step 5: Solve for x
    x = 20,800,786.04/5,245.40
  6. Step 6: Final answer
    x = 3,965.53

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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.