Home / 4,120.08-5,687.64-2,793.84

Finding the Fourth Proportional to 4,120.08, 5,687.64 and 2,793.84

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Solution

The fourth proportional to 4,120.08, 5,687.64 and 2,793.84 is: 3,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.08 : 5,687.64 = 2,793.84 : x
  2. Step 2: Convert to fraction form
    4,120.08/5,687.64 = 2,793.84/x
  3. Step 3: Cross multiply
    4,120.08x = 5,687.64 × 2,793.84
  4. Step 4: Simplify right side
    4,120.08x = 15,890,356.14
  5. Step 5: Solve for x
    x = 15,890,356.14/4,120.08
  6. Step 6: Final answer
    x = 3,856.81

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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.