Home / 5,057.38-7,587.12-2,135.72

Finding the Fourth Proportional to 5,057.38, 7,587.12 and 2,135.72

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Solution

The fourth proportional to 5,057.38, 7,587.12 and 2,135.72 is: 3,204.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.38 : 7,587.12 = 2,135.72 : x
  2. Step 2: Convert to fraction form
    5,057.38/7,587.12 = 2,135.72/x
  3. Step 3: Cross multiply
    5,057.38x = 7,587.12 × 2,135.72
  4. Step 4: Simplify right side
    5,057.38x = 16,203,963.93
  5. Step 5: Solve for x
    x = 16,203,963.93/5,057.38
  6. Step 6: Final answer
    x = 3,204.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.