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Finding the Fourth Proportional to 3,676.70, 5,073.70 and 1,998.07

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Solution

The fourth proportional to 3,676.70, 5,073.70 and 1,998.07 is: 2,757.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.70 : 5,073.70 = 1,998.07 : x
  2. Step 2: Convert to fraction form
    3,676.70/5,073.70 = 1,998.07/x
  3. Step 3: Cross multiply
    3,676.70x = 5,073.70 × 1,998.07
  4. Step 4: Simplify right side
    3,676.70x = 10,137,588.21
  5. Step 5: Solve for x
    x = 10,137,588.21/3,676.70
  6. Step 6: Final answer
    x = 2,757.25

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1.5x scale

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.