Home / 2,459.13-3,689.60-1,998.03

Finding the Fourth Proportional to 2,459.13, 3,689.60 and 1,998.03

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Solution

The fourth proportional to 2,459.13, 3,689.60 and 1,998.03 is: 2,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.13 : 3,689.60 = 1,998.03 : x
  2. Step 2: Convert to fraction form
    2,459.13/3,689.60 = 1,998.03/x
  3. Step 3: Cross multiply
    2,459.13x = 3,689.60 × 1,998.03
  4. Step 4: Simplify right side
    2,459.13x = 7,371,921.50
  5. Step 5: Solve for x
    x = 7,371,921.50/2,459.13
  6. Step 6: Final answer
    x = 2,997.78

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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.