Home / 2,892.36-3,989.40-1,996.44

Finding the Fourth Proportional to 2,892.36, 3,989.40 and 1,996.44

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Solution

The fourth proportional to 2,892.36, 3,989.40 and 1,996.44 is: 2,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.36 : 3,989.40 = 1,996.44 : x
  2. Step 2: Convert to fraction form
    2,892.36/3,989.40 = 1,996.44/x
  3. Step 3: Cross multiply
    2,892.36x = 3,989.40 × 1,996.44
  4. Step 4: Simplify right side
    2,892.36x = 7,964,597.74
  5. Step 5: Solve for x
    x = 7,964,597.74/2,892.36
  6. Step 6: Final answer
    x = 2,753.67

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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.