Home / 2,192.40-3,287.34-892.36

Finding the Fourth Proportional to 2,192.40, 3,287.34 and 892.36

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Solution

The fourth proportional to 2,192.40, 3,287.34 and 892.36 is: 1,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.40 : 3,287.34 = 892.36 : x
  2. Step 2: Convert to fraction form
    2,192.40/3,287.34 = 892.36/x
  3. Step 3: Cross multiply
    2,192.40x = 3,287.34 × 892.36
  4. Step 4: Simplify right side
    2,192.40x = 2,933,490.72
  5. Step 5: Solve for x
    x = 2,933,490.72/2,192.40
  6. Step 6: Final answer
    x = 1,338.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.