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Finding the Fourth Proportional to 5,945.79, 8,918.39 and 1,997.10

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Solution

The fourth proportional to 5,945.79, 8,918.39 and 1,997.10 is: 2,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,945.79 : 8,918.39 = 1,997.10 : x
  2. Step 2: Convert to fraction form
    5,945.79/8,918.39 = 1,997.10/x
  3. Step 3: Cross multiply
    5,945.79x = 8,918.39 × 1,997.10
  4. Step 4: Simplify right side
    5,945.79x = 17,810,906.68
  5. Step 5: Solve for x
    x = 17,810,906.68/5,945.79
  6. Step 6: Final answer
    x = 2,995.55

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1.5x scale

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.