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Finding the Fourth Proportional to 2,588.56, 3,882.16 and 1,766.68

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Solution

The fourth proportional to 2,588.56, 3,882.16 and 1,766.68 is: 2,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.56 : 3,882.16 = 1,766.68 : x
  2. Step 2: Convert to fraction form
    2,588.56/3,882.16 = 1,766.68/x
  3. Step 3: Cross multiply
    2,588.56x = 3,882.16 × 1,766.68
  4. Step 4: Simplify right side
    2,588.56x = 6,858,534.43
  5. Step 5: Solve for x
    x = 6,858,534.43/2,588.56
  6. Step 6: Final answer
    x = 2,649.56

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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.