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Finding the Fourth Proportional to 3,132.82, 4,690.09 and 2,715.09

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Solution

The fourth proportional to 3,132.82, 4,690.09 and 2,715.09 is: 4,064.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.82 : 4,690.09 = 2,715.09 : x
  2. Step 2: Convert to fraction form
    3,132.82/4,690.09 = 2,715.09/x
  3. Step 3: Cross multiply
    3,132.82x = 4,690.09 × 2,715.09
  4. Step 4: Simplify right side
    3,132.82x = 12,734,016.46
  5. Step 5: Solve for x
    x = 12,734,016.46/3,132.82
  6. Step 6: Final answer
    x = 4,064.71

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1.5x scale

Why These Related Problems?

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