Home / 5,113.27-7,668.28-2,190.79

Finding the Fourth Proportional to 5,113.27, 7,668.28 and 2,190.79

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Solution

The fourth proportional to 5,113.27, 7,668.28 and 2,190.79 is: 3,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.27 : 7,668.28 = 2,190.79 : x
  2. Step 2: Convert to fraction form
    5,113.27/7,668.28 = 2,190.79/x
  3. Step 3: Cross multiply
    5,113.27x = 7,668.28 × 2,190.79
  4. Step 4: Simplify right side
    5,113.27x = 16,799,591.14
  5. Step 5: Solve for x
    x = 16,799,591.14/5,113.27
  6. Step 6: Final answer
    x = 3,285.49

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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.