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Finding the Fourth Proportional to 5,760.99, 8,641.41 and 2,640.11

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Solution

The fourth proportional to 5,760.99, 8,641.41 and 2,640.11 is: 3,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.99 : 8,641.41 = 2,640.11 : x
  2. Step 2: Convert to fraction form
    5,760.99/8,641.41 = 2,640.11/x
  3. Step 3: Cross multiply
    5,760.99x = 8,641.41 × 2,640.11
  4. Step 4: Simplify right side
    5,760.99x = 22,814,229.75
  5. Step 5: Solve for x
    x = 22,814,229.75/5,760.99
  6. Step 6: Final answer
    x = 3,960.13

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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.