Home / 5,440.13-8,161.60-2,318.57

Finding the Fourth Proportional to 5,440.13, 8,161.60 and 2,318.57

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Solution

The fourth proportional to 5,440.13, 8,161.60 and 2,318.57 is: 3,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.13 : 8,161.60 = 2,318.57 : x
  2. Step 2: Convert to fraction form
    5,440.13/8,161.60 = 2,318.57/x
  3. Step 3: Cross multiply
    5,440.13x = 8,161.60 × 2,318.57
  4. Step 4: Simplify right side
    5,440.13x = 18,923,240.91
  5. Step 5: Solve for x
    x = 18,923,240.91/5,440.13
  6. Step 6: Final answer
    x = 3,478.45

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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.