Home / 5,209.11-7,818.39-2,745.63

Finding the Fourth Proportional to 5,209.11, 7,818.39 and 2,745.63

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Solution

The fourth proportional to 5,209.11, 7,818.39 and 2,745.63 is: 4,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.11 : 7,818.39 = 2,745.63 : x
  2. Step 2: Convert to fraction form
    5,209.11/7,818.39 = 2,745.63/x
  3. Step 3: Cross multiply
    5,209.11x = 7,818.39 × 2,745.63
  4. Step 4: Simplify right side
    5,209.11x = 21,466,406.14
  5. Step 5: Solve for x
    x = 21,466,406.14/5,209.11
  6. Step 6: Final answer
    x = 4,120.94

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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.