Home / 7,129.92-10,668.60-4,452.18

Finding the Fourth Proportional to 7,129.92, 10,668.60 and 4,452.18

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Solution

The fourth proportional to 7,129.92, 10,668.60 and 4,452.18 is: 6,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.92 : 10,668.60 = 4,452.18 : x
  2. Step 2: Convert to fraction form
    7,129.92/10,668.60 = 4,452.18/x
  3. Step 3: Cross multiply
    7,129.92x = 10,668.60 × 4,452.18
  4. Step 4: Simplify right side
    7,129.92x = 47,498,527.55
  5. Step 5: Solve for x
    x = 47,498,527.55/7,129.92
  6. Step 6: Final answer
    x = 6,661.86

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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.