Home / 3,806.28-5,252.40-2,127.76

Finding the Fourth Proportional to 3,806.28, 5,252.40 and 2,127.76

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Solution

The fourth proportional to 3,806.28, 5,252.40 and 2,127.76 is: 2,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.28 : 5,252.40 = 2,127.76 : x
  2. Step 2: Convert to fraction form
    3,806.28/5,252.40 = 2,127.76/x
  3. Step 3: Cross multiply
    3,806.28x = 5,252.40 × 2,127.76
  4. Step 4: Simplify right side
    3,806.28x = 11,175,833.49
  5. Step 5: Solve for x
    x = 11,175,833.49/3,806.28
  6. Step 6: Final answer
    x = 2,936.16

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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.