Home / 6,631.20-9,147.60-4,274.64

Finding the Fourth Proportional to 6,631.20, 9,147.60 and 4,274.64

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Solution

The fourth proportional to 6,631.20, 9,147.60 and 4,274.64 is: 5,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.20 : 9,147.60 = 4,274.64 : x
  2. Step 2: Convert to fraction form
    6,631.20/9,147.60 = 4,274.64/x
  3. Step 3: Cross multiply
    6,631.20x = 9,147.60 × 4,274.64
  4. Step 4: Simplify right side
    6,631.20x = 39,102,696.86
  5. Step 5: Solve for x
    x = 39,102,696.86/6,631.20
  6. Step 6: Final answer
    x = 5,896.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.