Home / 7,160.52-10,728.07-2,991.35

Finding the Fourth Proportional to 7,160.52, 10,728.07 and 2,991.35

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Solution

The fourth proportional to 7,160.52, 10,728.07 and 2,991.35 is: 4,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.52 : 10,728.07 = 2,991.35 : x
  2. Step 2: Convert to fraction form
    7,160.52/10,728.07 = 2,991.35/x
  3. Step 3: Cross multiply
    7,160.52x = 10,728.07 × 2,991.35
  4. Step 4: Simplify right side
    7,160.52x = 32,091,343.60
  5. Step 5: Solve for x
    x = 32,091,343.60/7,160.52
  6. Step 6: Final answer
    x = 4,481.71

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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.