Home / 4,921.68-6,791.16-2,797.32

Finding the Fourth Proportional to 4,921.68, 6,791.16 and 2,797.32

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Solution

The fourth proportional to 4,921.68, 6,791.16 and 2,797.32 is: 3,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.68 : 6,791.16 = 2,797.32 : x
  2. Step 2: Convert to fraction form
    4,921.68/6,791.16 = 2,797.32/x
  3. Step 3: Cross multiply
    4,921.68x = 6,791.16 × 2,797.32
  4. Step 4: Simplify right side
    4,921.68x = 18,997,047.69
  5. Step 5: Solve for x
    x = 18,997,047.69/4,921.68
  6. Step 6: Final answer
    x = 3,859.87

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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.