Home / 5,620.72-7,756.49-3,102.83

Finding the Fourth Proportional to 5,620.72, 7,756.49 and 3,102.83

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Solution

The fourth proportional to 5,620.72, 7,756.49 and 3,102.83 is: 4,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.72 : 7,756.49 = 3,102.83 : x
  2. Step 2: Convert to fraction form
    5,620.72/7,756.49 = 3,102.83/x
  3. Step 3: Cross multiply
    5,620.72x = 7,756.49 × 3,102.83
  4. Step 4: Simplify right side
    5,620.72x = 24,067,069.87
  5. Step 5: Solve for x
    x = 24,067,069.87/5,620.72
  6. Step 6: Final answer
    x = 4,281.85

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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.