Home / 3,785.86-5,221.53-2,459.99

Finding the Fourth Proportional to 3,785.86, 5,221.53 and 2,459.99

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Solution

The fourth proportional to 3,785.86, 5,221.53 and 2,459.99 is: 3,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.86 : 5,221.53 = 2,459.99 : x
  2. Step 2: Convert to fraction form
    3,785.86/5,221.53 = 2,459.99/x
  3. Step 3: Cross multiply
    3,785.86x = 5,221.53 × 2,459.99
  4. Step 4: Simplify right side
    3,785.86x = 12,844,924.64
  5. Step 5: Solve for x
    x = 12,844,924.64/3,785.86
  6. Step 6: Final answer
    x = 3,392.87

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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.