Home / 7,085.39-10,629.70-2,155.73

Finding the Fourth Proportional to 7,085.39, 10,629.70 and 2,155.73

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Solution

The fourth proportional to 7,085.39, 10,629.70 and 2,155.73 is: 3,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.39 : 10,629.70 = 2,155.73 : x
  2. Step 2: Convert to fraction form
    7,085.39/10,629.70 = 2,155.73/x
  3. Step 3: Cross multiply
    7,085.39x = 10,629.70 × 2,155.73
  4. Step 4: Simplify right side
    7,085.39x = 22,914,704.64
  5. Step 5: Solve for x
    x = 22,914,704.64/7,085.39
  6. Step 6: Final answer
    x = 3,234.08

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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.