Home / 5,145.35-7,718.94-2,682.25

Finding the Fourth Proportional to 5,145.35, 7,718.94 and 2,682.25

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Solution

The fourth proportional to 5,145.35, 7,718.94 and 2,682.25 is: 4,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.35 : 7,718.94 = 2,682.25 : x
  2. Step 2: Convert to fraction form
    5,145.35/7,718.94 = 2,682.25/x
  3. Step 3: Cross multiply
    5,145.35x = 7,718.94 × 2,682.25
  4. Step 4: Simplify right side
    5,145.35x = 20,704,107.52
  5. Step 5: Solve for x
    x = 20,704,107.52/5,145.35
  6. Step 6: Final answer
    x = 4,023.85

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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.