Home / 3,007.20-4,147.56-2,613.60

Finding the Fourth Proportional to 3,007.20, 4,147.56 and 2,613.60

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Solution

The fourth proportional to 3,007.20, 4,147.56 and 2,613.60 is: 3,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.20 : 4,147.56 = 2,613.60 : x
  2. Step 2: Convert to fraction form
    3,007.20/4,147.56 = 2,613.60/x
  3. Step 3: Cross multiply
    3,007.20x = 4,147.56 × 2,613.60
  4. Step 4: Simplify right side
    3,007.20x = 10,840,062.82
  5. Step 5: Solve for x
    x = 10,840,062.82/3,007.20
  6. Step 6: Final answer
    x = 3,604.70

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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.