Home / 5,174.12-7,138.56-2,935.76

Finding the Fourth Proportional to 5,174.12, 7,138.56 and 2,935.76

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Solution

The fourth proportional to 5,174.12, 7,138.56 and 2,935.76 is: 4,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.12 : 7,138.56 = 2,935.76 : x
  2. Step 2: Convert to fraction form
    5,174.12/7,138.56 = 2,935.76/x
  3. Step 3: Cross multiply
    5,174.12x = 7,138.56 × 2,935.76
  4. Step 4: Simplify right side
    5,174.12x = 20,957,098.91
  5. Step 5: Solve for x
    x = 20,957,098.91/5,174.12
  6. Step 6: Final answer
    x = 4,050.37

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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.