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Finding the Third Proportional to 1,370.53 and 2,135.81

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Solution

The third proportional to 1,370.53 and 2,135.81 is: 3,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.53 : 2,135.81 = 2,135.81 : x
  2. Step 2: Convert to fraction form
    1,370.53/2,135.81 = 2,135.81/x
  3. Step 3: Cross multiply
    1,370.53x = 2,135.81 × 2,135.81
  4. Step 4: Simplify right side
    1,370.53x = 4,561,695.04
  5. Step 5: Solve for x
    x = 4,561,695.04/1,370.53
  6. Step 6: Final answer
    x = 3,328.41

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.