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Finding the Third Proportional to 1,118.02 and 2,420.19

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Solution

The third proportional to 1,118.02 and 2,420.19 is: 5,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.02 : 2,420.19 = 2,420.19 : x
  2. Step 2: Convert to fraction form
    1,118.02/2,420.19 = 2,420.19/x
  3. Step 3: Cross multiply
    1,118.02x = 2,420.19 × 2,420.19
  4. Step 4: Simplify right side
    1,118.02x = 5,857,326.44
  5. Step 5: Solve for x
    x = 5,857,326.44/1,118.02
  6. Step 6: Final answer
    x = 5,239.01

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.