Home / 5,168.81-7,132.96-3,072.94

Finding the Fourth Proportional to 5,168.81, 7,132.96 and 3,072.94

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Solution

The fourth proportional to 5,168.81, 7,132.96 and 3,072.94 is: 4,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.81 : 7,132.96 = 3,072.94 : x
  2. Step 2: Convert to fraction form
    5,168.81/7,132.96 = 3,072.94/x
  3. Step 3: Cross multiply
    5,168.81x = 7,132.96 × 3,072.94
  4. Step 4: Simplify right side
    5,168.81x = 21,919,144.11
  5. Step 5: Solve for x
    x = 21,919,144.11/5,168.81
  6. Step 6: Final answer
    x = 4,240.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.