Home / 5,177.48-7,145.62-3,081.38

Finding the Fourth Proportional to 5,177.48, 7,145.62 and 3,081.38

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Solution

The fourth proportional to 5,177.48, 7,145.62 and 3,081.38 is: 4,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.48 : 7,145.62 = 3,081.38 : x
  2. Step 2: Convert to fraction form
    5,177.48/7,145.62 = 3,081.38/x
  3. Step 3: Cross multiply
    5,177.48x = 7,145.62 × 3,081.38
  4. Step 4: Simplify right side
    5,177.48x = 22,018,327.12
  5. Step 5: Solve for x
    x = 22,018,327.12/5,177.48
  6. Step 6: Final answer
    x = 4,252.72

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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.