Home / 7,079.56-10,615.68-3,180.64

Finding the Fourth Proportional to 7,079.56, 10,615.68 and 3,180.64

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Solution

The fourth proportional to 7,079.56, 10,615.68 and 3,180.64 is: 4,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.56 : 10,615.68 = 3,180.64 : x
  2. Step 2: Convert to fraction form
    7,079.56/10,615.68 = 3,180.64/x
  3. Step 3: Cross multiply
    7,079.56x = 10,615.68 × 3,180.64
  4. Step 4: Simplify right side
    7,079.56x = 33,764,656.44
  5. Step 5: Solve for x
    x = 33,764,656.44/7,079.56
  6. Step 6: Final answer
    x = 4,769.32

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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.