Home / 3,871.34-5,342.69-2,192.92

Finding the Fourth Proportional to 3,871.34, 5,342.69 and 2,192.92

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Solution

The fourth proportional to 3,871.34, 5,342.69 and 2,192.92 is: 3,026.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.34 : 5,342.69 = 2,192.92 : x
  2. Step 2: Convert to fraction form
    3,871.34/5,342.69 = 2,192.92/x
  3. Step 3: Cross multiply
    3,871.34x = 5,342.69 × 2,192.92
  4. Step 4: Simplify right side
    3,871.34x = 11,716,091.75
  5. Step 5: Solve for x
    x = 11,716,091.75/3,871.34
  6. Step 6: Final answer
    x = 3,026.37

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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.