Home / 2,821.38-3,858.96-2,776.02

Finding the Fourth Proportional to 2,821.38, 3,858.96 and 2,776.02

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Solution

The fourth proportional to 2,821.38, 3,858.96 and 2,776.02 is: 3,796.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.38 : 3,858.96 = 2,776.02 : x
  2. Step 2: Convert to fraction form
    2,821.38/3,858.96 = 2,776.02/x
  3. Step 3: Cross multiply
    2,821.38x = 3,858.96 × 2,776.02
  4. Step 4: Simplify right side
    2,821.38x = 10,712,550.14
  5. Step 5: Solve for x
    x = 10,712,550.14/2,821.38
  6. Step 6: Final answer
    x = 3,796.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.