Home / 3,871.56-5,342.68-2,192.94

Finding the Fourth Proportional to 3,871.56, 5,342.68 and 2,192.94

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Solution

The fourth proportional to 3,871.56, 5,342.68 and 2,192.94 is: 3,026.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.56 : 5,342.68 = 2,192.94 : x
  2. Step 2: Convert to fraction form
    3,871.56/5,342.68 = 2,192.94/x
  3. Step 3: Cross multiply
    3,871.56x = 5,342.68 × 2,192.94
  4. Step 4: Simplify right side
    3,871.56x = 11,716,176.68
  5. Step 5: Solve for x
    x = 11,716,176.68/3,871.56
  6. Step 6: Final answer
    x = 3,026.22

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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.