Home / 3,998.40-6,000.30-2,608.35

Finding the Fourth Proportional to 3,998.40, 6,000.30 and 2,608.35

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Solution

The fourth proportional to 3,998.40, 6,000.30 and 2,608.35 is: 3,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.40 : 6,000.30 = 2,608.35 : x
  2. Step 2: Convert to fraction form
    3,998.40/6,000.30 = 2,608.35/x
  3. Step 3: Cross multiply
    3,998.40x = 6,000.30 × 2,608.35
  4. Step 4: Simplify right side
    3,998.40x = 15,650,882.51
  5. Step 5: Solve for x
    x = 15,650,882.51/3,998.40
  6. Step 6: Final answer
    x = 3,914.29

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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.