Home / 3,285.57-4,529.11-2,489.14

Finding the Fourth Proportional to 3,285.57, 4,529.11 and 2,489.14

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Solution

The fourth proportional to 3,285.57, 4,529.11 and 2,489.14 is: 3,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.57 : 4,529.11 = 2,489.14 : x
  2. Step 2: Convert to fraction form
    3,285.57/4,529.11 = 2,489.14/x
  3. Step 3: Cross multiply
    3,285.57x = 4,529.11 × 2,489.14
  4. Step 4: Simplify right side
    3,285.57x = 11,273,588.87
  5. Step 5: Solve for x
    x = 11,273,588.87/3,285.57
  6. Step 6: Final answer
    x = 3,431.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.