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Finding the Third Proportional to 845.72 and 1,130.91

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Solution

The third proportional to 845.72 and 1,130.91 is: 1,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.72 : 1,130.91 = 1,130.91 : x
  2. Step 2: Convert to fraction form
    845.72/1,130.91 = 1,130.91/x
  3. Step 3: Cross multiply
    845.72x = 1,130.91 × 1,130.91
  4. Step 4: Simplify right side
    845.72x = 1,278,948.95
  5. Step 5: Solve for x
    x = 1,278,948.95/845.72
  6. Step 6: Final answer
    x = 1,512.26

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.