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Finding the Third Proportional to 1,575.75 and 1,742.81

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Solution

The third proportional to 1,575.75 and 1,742.81 is: 1,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.75 : 1,742.81 = 1,742.81 : x
  2. Step 2: Convert to fraction form
    1,575.75/1,742.81 = 1,742.81/x
  3. Step 3: Cross multiply
    1,575.75x = 1,742.81 × 1,742.81
  4. Step 4: Simplify right side
    1,575.75x = 3,037,395.41
  5. Step 5: Solve for x
    x = 3,037,395.41/1,575.75
  6. Step 6: Final answer
    x = 1,927.59

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.