Home / 6,728.20-10,085.10-3,029.80

Finding the Fourth Proportional to 6,728.20, 10,085.10 and 3,029.80

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Solution

The fourth proportional to 6,728.20, 10,085.10 and 3,029.80 is: 4,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.20 : 10,085.10 = 3,029.80 : x
  2. Step 2: Convert to fraction form
    6,728.20/10,085.10 = 3,029.80/x
  3. Step 3: Cross multiply
    6,728.20x = 10,085.10 × 3,029.80
  4. Step 4: Simplify right side
    6,728.20x = 30,555,835.98
  5. Step 5: Solve for x
    x = 30,555,835.98/6,728.20
  6. Step 6: Final answer
    x = 4,541.46

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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.