Home / 5,629.20-8,440.20-2,343.60

Finding the Fourth Proportional to 5,629.20, 8,440.20 and 2,343.60

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Solution

The fourth proportional to 5,629.20, 8,440.20 and 2,343.60 is: 3,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.20 : 8,440.20 = 2,343.60 : x
  2. Step 2: Convert to fraction form
    5,629.20/8,440.20 = 2,343.60/x
  3. Step 3: Cross multiply
    5,629.20x = 8,440.20 × 2,343.60
  4. Step 4: Simplify right side
    5,629.20x = 19,780,452.72
  5. Step 5: Solve for x
    x = 19,780,452.72/5,629.20
  6. Step 6: Final answer
    x = 3,513.90

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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.