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Finding the Fourth Proportional to 2,726.70, 4,090.05 and 1,803.30

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Solution

The fourth proportional to 2,726.70, 4,090.05 and 1,803.30 is: 2,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.70 : 4,090.05 = 1,803.30 : x
  2. Step 2: Convert to fraction form
    2,726.70/4,090.05 = 1,803.30/x
  3. Step 3: Cross multiply
    2,726.70x = 4,090.05 × 1,803.30
  4. Step 4: Simplify right side
    2,726.70x = 7,375,587.17
  5. Step 5: Solve for x
    x = 7,375,587.17/2,726.70
  6. Step 6: Final answer
    x = 2,704.95

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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.