Home / 2,003.06-3,001.80-1,272.20

Finding the Fourth Proportional to 2,003.06, 3,001.80 and 1,272.20

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Solution

The fourth proportional to 2,003.06, 3,001.80 and 1,272.20 is: 1,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.06 : 3,001.80 = 1,272.20 : x
  2. Step 2: Convert to fraction form
    2,003.06/3,001.80 = 1,272.20/x
  3. Step 3: Cross multiply
    2,003.06x = 3,001.80 × 1,272.20
  4. Step 4: Simplify right side
    2,003.06x = 3,818,889.96
  5. Step 5: Solve for x
    x = 3,818,889.96/2,003.06
  6. Step 6: Final answer
    x = 1,906.53

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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.