Home / 1,820.54-2,729.97-1,272.98

Finding the Fourth Proportional to 1,820.54, 2,729.97 and 1,272.98

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Solution

The fourth proportional to 1,820.54, 2,729.97 and 1,272.98 is: 1,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.54 : 2,729.97 = 1,272.98 : x
  2. Step 2: Convert to fraction form
    1,820.54/2,729.97 = 1,272.98/x
  3. Step 3: Cross multiply
    1,820.54x = 2,729.97 × 1,272.98
  4. Step 4: Simplify right side
    1,820.54x = 3,475,204.04
  5. Step 5: Solve for x
    x = 3,475,204.04/1,820.54
  6. Step 6: Final answer
    x = 1,908.88

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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.