Home / 2,796.18-3,857.64-1,677.12

Finding the Fourth Proportional to 2,796.18, 3,857.64 and 1,677.12

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Solution

The fourth proportional to 2,796.18, 3,857.64 and 1,677.12 is: 2,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.18 : 3,857.64 = 1,677.12 : x
  2. Step 2: Convert to fraction form
    2,796.18/3,857.64 = 1,677.12/x
  3. Step 3: Cross multiply
    2,796.18x = 3,857.64 × 1,677.12
  4. Step 4: Simplify right side
    2,796.18x = 6,469,725.20
  5. Step 5: Solve for x
    x = 6,469,725.20/2,796.18
  6. Step 6: Final answer
    x = 2,313.77

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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.