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Finding the Fourth Proportional to 3,656.14, 5,489.07 and 1,709.71

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Solution

The fourth proportional to 3,656.14, 5,489.07 and 1,709.71 is: 2,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.14 : 5,489.07 = 1,709.71 : x
  2. Step 2: Convert to fraction form
    3,656.14/5,489.07 = 1,709.71/x
  3. Step 3: Cross multiply
    3,656.14x = 5,489.07 × 1,709.71
  4. Step 4: Simplify right side
    3,656.14x = 9,384,717.87
  5. Step 5: Solve for x
    x = 9,384,717.87/3,656.14
  6. Step 6: Final answer
    x = 2,566.84

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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.