Home / 3,638.60-5,460.28-1,996.30

Finding the Fourth Proportional to 3,638.60, 5,460.28 and 1,996.30

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Solution

The fourth proportional to 3,638.60, 5,460.28 and 1,996.30 is: 2,995.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.60 : 5,460.28 = 1,996.30 : x
  2. Step 2: Convert to fraction form
    3,638.60/5,460.28 = 1,996.30/x
  3. Step 3: Cross multiply
    3,638.60x = 5,460.28 × 1,996.30
  4. Step 4: Simplify right side
    3,638.60x = 10,900,356.96
  5. Step 5: Solve for x
    x = 10,900,356.96/3,638.60
  6. Step 6: Final answer
    x = 2,995.76

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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.