Home / 5,170.72-7,135.20-2,932.08

Finding the Fourth Proportional to 5,170.72, 7,135.20 and 2,932.08

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Solution

The fourth proportional to 5,170.72, 7,135.20 and 2,932.08 is: 4,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.72 : 7,135.20 = 2,932.08 : x
  2. Step 2: Convert to fraction form
    5,170.72/7,135.20 = 2,932.08/x
  3. Step 3: Cross multiply
    5,170.72x = 7,135.20 × 2,932.08
  4. Step 4: Simplify right side
    5,170.72x = 20,920,977.22
  5. Step 5: Solve for x
    x = 20,920,977.22/5,170.72
  6. Step 6: Final answer
    x = 4,046.05

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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.