Home / 5,436.33-8,153.27-2,660.21

Finding the Fourth Proportional to 5,436.33, 8,153.27 and 2,660.21

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Solution

The fourth proportional to 5,436.33, 8,153.27 and 2,660.21 is: 3,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.33 : 8,153.27 = 2,660.21 : x
  2. Step 2: Convert to fraction form
    5,436.33/8,153.27 = 2,660.21/x
  3. Step 3: Cross multiply
    5,436.33x = 8,153.27 × 2,660.21
  4. Step 4: Simplify right side
    5,436.33x = 21,689,396.87
  5. Step 5: Solve for x
    x = 21,689,396.87/5,436.33
  6. Step 6: Final answer
    x = 3,989.72

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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.