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Finding the Third Proportional to 1,438.07 and 2,337.21

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Solution

The third proportional to 1,438.07 and 2,337.21 is: 3,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438.07 : 2,337.21 = 2,337.21 : x
  2. Step 2: Convert to fraction form
    1,438.07/2,337.21 = 2,337.21/x
  3. Step 3: Cross multiply
    1,438.07x = 2,337.21 × 2,337.21
  4. Step 4: Simplify right side
    1,438.07x = 5,462,568.66
  5. Step 5: Solve for x
    x = 5,462,568.66/1,438.07
  6. Step 6: Final answer
    x = 3,798.55

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.