Home / 3,786.28-5,225.02-2,107.64

Finding the Fourth Proportional to 3,786.28, 5,225.02 and 2,107.64

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Solution

The fourth proportional to 3,786.28, 5,225.02 and 2,107.64 is: 2,908.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.28 : 5,225.02 = 2,107.64 : x
  2. Step 2: Convert to fraction form
    3,786.28/5,225.02 = 2,107.64/x
  3. Step 3: Cross multiply
    3,786.28x = 5,225.02 × 2,107.64
  4. Step 4: Simplify right side
    3,786.28x = 11,012,461.15
  5. Step 5: Solve for x
    x = 11,012,461.15/3,786.28
  6. Step 6: Final answer
    x = 2,908.52

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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.