Home / 7,079.75-9,766.37-4,245.76

Finding the Fourth Proportional to 7,079.75, 9,766.37 and 4,245.76

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Solution

The fourth proportional to 7,079.75, 9,766.37 and 4,245.76 is: 5,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.75 : 9,766.37 = 4,245.76 : x
  2. Step 2: Convert to fraction form
    7,079.75/9,766.37 = 4,245.76/x
  3. Step 3: Cross multiply
    7,079.75x = 9,766.37 × 4,245.76
  4. Step 4: Simplify right side
    7,079.75x = 41,465,685.91
  5. Step 5: Solve for x
    x = 41,465,685.91/7,079.75
  6. Step 6: Final answer
    x = 5,856.94

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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.