Home / 7,149.06-10,724.40-3,450.60

Finding the Fourth Proportional to 7,149.06, 10,724.40 and 3,450.60

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Solution

The fourth proportional to 7,149.06, 10,724.40 and 3,450.60 is: 5,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.06 : 10,724.40 = 3,450.60 : x
  2. Step 2: Convert to fraction form
    7,149.06/10,724.40 = 3,450.60/x
  3. Step 3: Cross multiply
    7,149.06x = 10,724.40 × 3,450.60
  4. Step 4: Simplify right side
    7,149.06x = 37,005,614.64
  5. Step 5: Solve for x
    x = 37,005,614.64/7,149.06
  6. Step 6: Final answer
    x = 5,176.29

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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.