Home / 7,989.42-11,975.91-3,057.72

Finding the Fourth Proportional to 7,989.42, 11,975.91 and 3,057.72

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Solution

The fourth proportional to 7,989.42, 11,975.91 and 3,057.72 is: 4,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.42 : 11,975.91 = 3,057.72 : x
  2. Step 2: Convert to fraction form
    7,989.42/11,975.91 = 3,057.72/x
  3. Step 3: Cross multiply
    7,989.42x = 11,975.91 × 3,057.72
  4. Step 4: Simplify right side
    7,989.42x = 36,618,979.53
  5. Step 5: Solve for x
    x = 36,618,979.53/7,989.42
  6. Step 6: Final answer
    x = 4,583.43

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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.