Home / 7,520.86-11,285.39-3,360.70

Finding the Fourth Proportional to 7,520.86, 11,285.39 and 3,360.70

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Solution

The fourth proportional to 7,520.86, 11,285.39 and 3,360.70 is: 5,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.86 : 11,285.39 = 3,360.70 : x
  2. Step 2: Convert to fraction form
    7,520.86/11,285.39 = 3,360.70/x
  3. Step 3: Cross multiply
    7,520.86x = 11,285.39 × 3,360.70
  4. Step 4: Simplify right side
    7,520.86x = 37,926,832.68
  5. Step 5: Solve for x
    x = 37,926,832.68/7,520.86
  6. Step 6: Final answer
    x = 5,042.88

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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.