Home / 3,871.07-5,342.15-2,192.44

Finding the Fourth Proportional to 3,871.07, 5,342.15 and 2,192.44

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Solution

The fourth proportional to 3,871.07, 5,342.15 and 2,192.44 is: 3,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.07 : 5,342.15 = 2,192.44 : x
  2. Step 2: Convert to fraction form
    3,871.07/5,342.15 = 2,192.44/x
  3. Step 3: Cross multiply
    3,871.07x = 5,342.15 × 2,192.44
  4. Step 4: Simplify right side
    3,871.07x = 11,712,319.03
  5. Step 5: Solve for x
    x = 11,712,319.03/3,871.07
  6. Step 6: Final answer
    x = 3,025.60

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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.