Home / 3,726.32-5,142.84-2,486.48

Finding the Fourth Proportional to 3,726.32, 5,142.84 and 2,486.48

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Solution

The fourth proportional to 3,726.32, 5,142.84 and 2,486.48 is: 3,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.32 : 5,142.84 = 2,486.48 : x
  2. Step 2: Convert to fraction form
    3,726.32/5,142.84 = 2,486.48/x
  3. Step 3: Cross multiply
    3,726.32x = 5,142.84 × 2,486.48
  4. Step 4: Simplify right side
    3,726.32x = 12,787,568.80
  5. Step 5: Solve for x
    x = 12,787,568.80/3,726.32
  6. Step 6: Final answer
    x = 3,431.69

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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.