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Finding the Fourth Proportional to 1,961.01, 2,707.01 and 1,401.70

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Solution

The fourth proportional to 1,961.01, 2,707.01 and 1,401.70 is: 1,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.01 : 2,707.01 = 1,401.70 : x
  2. Step 2: Convert to fraction form
    1,961.01/2,707.01 = 1,401.70/x
  3. Step 3: Cross multiply
    1,961.01x = 2,707.01 × 1,401.70
  4. Step 4: Simplify right side
    1,961.01x = 3,794,408.91
  5. Step 5: Solve for x
    x = 3,794,408.91/1,961.01
  6. Step 6: Final answer
    x = 1,934.93

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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.