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Finding the Third Proportional to 1,258.59 and 2,750.91

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Solution

The third proportional to 1,258.59 and 2,750.91 is: 6,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.59 : 2,750.91 = 2,750.91 : x
  2. Step 2: Convert to fraction form
    1,258.59/2,750.91 = 2,750.91/x
  3. Step 3: Cross multiply
    1,258.59x = 2,750.91 × 2,750.91
  4. Step 4: Simplify right side
    1,258.59x = 7,567,485.20
  5. Step 5: Solve for x
    x = 7,567,485.20/1,258.59
  6. Step 6: Final answer
    x = 6,012.65

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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.