Home / 6,880.56-10,321.20-5,239.68

Finding the Fourth Proportional to 6,880.56, 10,321.20 and 5,239.68

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Solution

The fourth proportional to 6,880.56, 10,321.20 and 5,239.68 is: 7,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.56 : 10,321.20 = 5,239.68 : x
  2. Step 2: Convert to fraction form
    6,880.56/10,321.20 = 5,239.68/x
  3. Step 3: Cross multiply
    6,880.56x = 10,321.20 × 5,239.68
  4. Step 4: Simplify right side
    6,880.56x = 54,079,785.22
  5. Step 5: Solve for x
    x = 54,079,785.22/6,880.56
  6. Step 6: Final answer
    x = 7,859.79

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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.