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Finding the Third Proportional to 2,875.13 and 4,287.38

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Solution

The third proportional to 2,875.13 and 4,287.38 is: 6,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.13 : 4,287.38 = 4,287.38 : x
  2. Step 2: Convert to fraction form
    2,875.13/4,287.38 = 4,287.38/x
  3. Step 3: Cross multiply
    2,875.13x = 4,287.38 × 4,287.38
  4. Step 4: Simplify right side
    2,875.13x = 18,381,584.39
  5. Step 5: Solve for x
    x = 18,381,584.39/2,875.13
  6. Step 6: Final answer
    x = 6,393.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.