Home / 3,003.90-4,140.41-2,008.81

Finding the Fourth Proportional to 3,003.90, 4,140.41 and 2,008.81

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Solution

The fourth proportional to 3,003.90, 4,140.41 and 2,008.81 is: 2,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.90 : 4,140.41 = 2,008.81 : x
  2. Step 2: Convert to fraction form
    3,003.90/4,140.41 = 2,008.81/x
  3. Step 3: Cross multiply
    3,003.90x = 4,140.41 × 2,008.81
  4. Step 4: Simplify right side
    3,003.90x = 8,317,297.01
  5. Step 5: Solve for x
    x = 8,317,297.01/3,003.90
  6. Step 6: Final answer
    x = 2,768.83

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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.