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Finding the Fourth Proportional to 1,798.05, 2,481.20 and 1,001.30

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Solution

The fourth proportional to 1,798.05, 2,481.20 and 1,001.30 is: 1,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.05 : 2,481.20 = 1,001.30 : x
  2. Step 2: Convert to fraction form
    1,798.05/2,481.20 = 1,001.30/x
  3. Step 3: Cross multiply
    1,798.05x = 2,481.20 × 1,001.30
  4. Step 4: Simplify right side
    1,798.05x = 2,484,408.15
  5. Step 5: Solve for x
    x = 2,484,408.15/1,798.05
  6. Step 6: Final answer
    x = 1,381.72

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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.