Home / 5,156.32-7,119.42-3,169.54

Finding the Fourth Proportional to 5,156.32, 7,119.42 and 3,169.54

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Solution

The fourth proportional to 5,156.32, 7,119.42 and 3,169.54 is: 4,376.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.32 : 7,119.42 = 3,169.54 : x
  2. Step 2: Convert to fraction form
    5,156.32/7,119.42 = 3,169.54/x
  3. Step 3: Cross multiply
    5,156.32x = 7,119.42 × 3,169.54
  4. Step 4: Simplify right side
    5,156.32x = 22,565,286.47
  5. Step 5: Solve for x
    x = 22,565,286.47/5,156.32
  6. Step 6: Final answer
    x = 4,376.24

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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.