Home / 5,173.92-7,135.81-3,180.91

Finding the Fourth Proportional to 5,173.92, 7,135.81 and 3,180.91

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Solution

The fourth proportional to 5,173.92, 7,135.81 and 3,180.91 is: 4,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.92 : 7,135.81 = 3,180.91 : x
  2. Step 2: Convert to fraction form
    5,173.92/7,135.81 = 3,180.91/x
  3. Step 3: Cross multiply
    5,173.92x = 7,135.81 × 3,180.91
  4. Step 4: Simplify right side
    5,173.92x = 22,698,369.39
  5. Step 5: Solve for x
    x = 22,698,369.39/5,173.92
  6. Step 6: Final answer
    x = 4,387.07

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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.