Home / 3,003.40-4,144.62-1,868.80

Finding the Fourth Proportional to 3,003.40, 4,144.62 and 1,868.80

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Solution

The fourth proportional to 3,003.40, 4,144.62 and 1,868.80 is: 2,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.40 : 4,144.62 = 1,868.80 : x
  2. Step 2: Convert to fraction form
    3,003.40/4,144.62 = 1,868.80/x
  3. Step 3: Cross multiply
    3,003.40x = 4,144.62 × 1,868.80
  4. Step 4: Simplify right side
    3,003.40x = 7,745,465.86
  5. Step 5: Solve for x
    x = 7,745,465.86/3,003.40
  6. Step 6: Final answer
    x = 2,578.90

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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.