Home / 5,003.80-7,505.09-2,081.72

Finding the Fourth Proportional to 5,003.80, 7,505.09 and 2,081.72

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Solution

The fourth proportional to 5,003.80, 7,505.09 and 2,081.72 is: 3,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.80 : 7,505.09 = 2,081.72 : x
  2. Step 2: Convert to fraction form
    5,003.80/7,505.09 = 2,081.72/x
  3. Step 3: Cross multiply
    5,003.80x = 7,505.09 × 2,081.72
  4. Step 4: Simplify right side
    5,003.80x = 15,623,512.12
  5. Step 5: Solve for x
    x = 15,623,512.12/5,003.80
  6. Step 6: Final answer
    x = 3,122.33

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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.