Home / 3,871.16-5,340.88-2,192.36

Finding the Fourth Proportional to 3,871.16, 5,340.88 and 2,192.36

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Solution

The fourth proportional to 3,871.16, 5,340.88 and 2,192.36 is: 3,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.16 : 5,340.88 = 2,192.36 : x
  2. Step 2: Convert to fraction form
    3,871.16/5,340.88 = 2,192.36/x
  3. Step 3: Cross multiply
    3,871.16x = 5,340.88 × 2,192.36
  4. Step 4: Simplify right side
    3,871.16x = 11,709,131.68
  5. Step 5: Solve for x
    x = 11,709,131.68/3,871.16
  6. Step 6: Final answer
    x = 3,024.71

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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.