Home / 5,168.43-7,128.81-3,176.37

Finding the Fourth Proportional to 5,168.43, 7,128.81 and 3,176.37

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Solution

The fourth proportional to 5,168.43, 7,128.81 and 3,176.37 is: 4,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.43 : 7,128.81 = 3,176.37 : x
  2. Step 2: Convert to fraction form
    5,168.43/7,128.81 = 3,176.37/x
  3. Step 3: Cross multiply
    5,168.43x = 7,128.81 × 3,176.37
  4. Step 4: Simplify right side
    5,168.43x = 22,643,738.22
  5. Step 5: Solve for x
    x = 22,643,738.22/5,168.43
  6. Step 6: Final answer
    x = 4,381.16

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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.