Home / 3,981.58-5,496.88-2,659.66

Finding the Fourth Proportional to 3,981.58, 5,496.88 and 2,659.66

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Solution

The fourth proportional to 3,981.58, 5,496.88 and 2,659.66 is: 3,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.58 : 5,496.88 = 2,659.66 : x
  2. Step 2: Convert to fraction form
    3,981.58/5,496.88 = 2,659.66/x
  3. Step 3: Cross multiply
    3,981.58x = 5,496.88 × 2,659.66
  4. Step 4: Simplify right side
    3,981.58x = 14,619,831.86
  5. Step 5: Solve for x
    x = 14,619,831.86/3,981.58
  6. Step 6: Final answer
    x = 3,671.87

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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.