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Finding the Third Proportional to 1,131.47 and 1,697.84

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Solution

The third proportional to 1,131.47 and 1,697.84 is: 2,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.47 : 1,697.84 = 1,697.84 : x
  2. Step 2: Convert to fraction form
    1,131.47/1,697.84 = 1,697.84/x
  3. Step 3: Cross multiply
    1,131.47x = 1,697.84 × 1,697.84
  4. Step 4: Simplify right side
    1,131.47x = 2,882,646.87
  5. Step 5: Solve for x
    x = 2,882,646.87/1,131.47
  6. Step 6: Final answer
    x = 2,547.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.