Home / 5,440.86-8,161.57-2,321.28

Finding the Fourth Proportional to 5,440.86, 8,161.57 and 2,321.28

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Solution

The fourth proportional to 5,440.86, 8,161.57 and 2,321.28 is: 3,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.86 : 8,161.57 = 2,321.28 : x
  2. Step 2: Convert to fraction form
    5,440.86/8,161.57 = 2,321.28/x
  3. Step 3: Cross multiply
    5,440.86x = 8,161.57 × 2,321.28
  4. Step 4: Simplify right side
    5,440.86x = 18,945,289.21
  5. Step 5: Solve for x
    x = 18,945,289.21/5,440.86
  6. Step 6: Final answer
    x = 3,482.04

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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.