Home / 5,170.68-7,131.88-3,182.32

Finding the Fourth Proportional to 5,170.68, 7,131.88 and 3,182.32

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Solution

The fourth proportional to 5,170.68, 7,131.88 and 3,182.32 is: 4,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.68 : 7,131.88 = 3,182.32 : x
  2. Step 2: Convert to fraction form
    5,170.68/7,131.88 = 3,182.32/x
  3. Step 3: Cross multiply
    5,170.68x = 7,131.88 × 3,182.32
  4. Step 4: Simplify right side
    5,170.68x = 22,695,924.36
  5. Step 5: Solve for x
    x = 22,695,924.36/5,170.68
  6. Step 6: Final answer
    x = 4,389.35

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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.