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Finding the Third Proportional to 1,331.02 and 2,918.32

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Solution

The third proportional to 1,331.02 and 2,918.32 is: 6,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.02 : 2,918.32 = 2,918.32 : x
  2. Step 2: Convert to fraction form
    1,331.02/2,918.32 = 2,918.32/x
  3. Step 3: Cross multiply
    1,331.02x = 2,918.32 × 2,918.32
  4. Step 4: Simplify right side
    1,331.02x = 8,516,593.45
  5. Step 5: Solve for x
    x = 8,516,593.45/1,331.02
  6. Step 6: Final answer
    x = 6,398.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.