Home / 3,823.92-5,274.18-2,479.86

Finding the Fourth Proportional to 3,823.92, 5,274.18 and 2,479.86

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Solution

The fourth proportional to 3,823.92, 5,274.18 and 2,479.86 is: 3,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.92 : 5,274.18 = 2,479.86 : x
  2. Step 2: Convert to fraction form
    3,823.92/5,274.18 = 2,479.86/x
  3. Step 3: Cross multiply
    3,823.92x = 5,274.18 × 2,479.86
  4. Step 4: Simplify right side
    3,823.92x = 13,079,228.01
  5. Step 5: Solve for x
    x = 13,079,228.01/3,823.92
  6. Step 6: Final answer
    x = 3,420.37

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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.