Home / 2,849.36-3,933.24-2,011.28

Finding the Fourth Proportional to 2,849.36, 3,933.24 and 2,011.28

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Solution

The fourth proportional to 2,849.36, 3,933.24 and 2,011.28 is: 2,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.36 : 3,933.24 = 2,011.28 : x
  2. Step 2: Convert to fraction form
    2,849.36/3,933.24 = 2,011.28/x
  3. Step 3: Cross multiply
    2,849.36x = 3,933.24 × 2,011.28
  4. Step 4: Simplify right side
    2,849.36x = 7,910,846.95
  5. Step 5: Solve for x
    x = 7,910,846.95/2,849.36
  6. Step 6: Final answer
    x = 2,776.36

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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.