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Finding the Third Proportional to 2,890.37 and 4,127.68

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Solution

The third proportional to 2,890.37 and 4,127.68 is: 5,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.37 : 4,127.68 = 4,127.68 : x
  2. Step 2: Convert to fraction form
    2,890.37/4,127.68 = 4,127.68/x
  3. Step 3: Cross multiply
    2,890.37x = 4,127.68 × 4,127.68
  4. Step 4: Simplify right side
    2,890.37x = 17,037,723.48
  5. Step 5: Solve for x
    x = 17,037,723.48/2,890.37
  6. Step 6: Final answer
    x = 5,894.65

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.