Home / 3,786.29-5,225.16-2,107.77

Finding the Fourth Proportional to 3,786.29, 5,225.16 and 2,107.77

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Solution

The fourth proportional to 3,786.29, 5,225.16 and 2,107.77 is: 2,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.29 : 5,225.16 = 2,107.77 : x
  2. Step 2: Convert to fraction form
    3,786.29/5,225.16 = 2,107.77/x
  3. Step 3: Cross multiply
    3,786.29x = 5,225.16 × 2,107.77
  4. Step 4: Simplify right side
    3,786.29x = 11,013,441.34
  5. Step 5: Solve for x
    x = 11,013,441.34/3,786.29
  6. Step 6: Final answer
    x = 2,908.77

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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.