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Finding the Fourth Proportional to 3,265.92, 4,507.05 and 1,868.70

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Solution

The fourth proportional to 3,265.92, 4,507.05 and 1,868.70 is: 2,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,265.92 : 4,507.05 = 1,868.70 : x
  2. Step 2: Convert to fraction form
    3,265.92/4,507.05 = 1,868.70/x
  3. Step 3: Cross multiply
    3,265.92x = 4,507.05 × 1,868.70
  4. Step 4: Simplify right side
    3,265.92x = 8,422,324.34
  5. Step 5: Solve for x
    x = 8,422,324.34/3,265.92
  6. Step 6: Final answer
    x = 2,578.85

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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.