Home / 4,212.88-5,816.28-2,798.56

Finding the Fourth Proportional to 4,212.88, 5,816.28 and 2,798.56

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Solution

The fourth proportional to 4,212.88, 5,816.28 and 2,798.56 is: 3,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.88 : 5,816.28 = 2,798.56 : x
  2. Step 2: Convert to fraction form
    4,212.88/5,816.28 = 2,798.56/x
  3. Step 3: Cross multiply
    4,212.88x = 5,816.28 × 2,798.56
  4. Step 4: Simplify right side
    4,212.88x = 16,277,208.56
  5. Step 5: Solve for x
    x = 16,277,208.56/4,212.88
  6. Step 6: Final answer
    x = 3,863.68

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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.