Home / 5,168.49-7,130.67-3,151.08

Finding the Fourth Proportional to 5,168.49, 7,130.67 and 3,151.08

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Solution

The fourth proportional to 5,168.49, 7,130.67 and 3,151.08 is: 4,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.49 : 7,130.67 = 3,151.08 : x
  2. Step 2: Convert to fraction form
    5,168.49/7,130.67 = 3,151.08/x
  3. Step 3: Cross multiply
    5,168.49x = 7,130.67 × 3,151.08
  4. Step 4: Simplify right side
    5,168.49x = 22,469,311.62
  5. Step 5: Solve for x
    x = 22,469,311.62/5,168.49
  6. Step 6: Final answer
    x = 4,347.36

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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.