Home / 5,076.21-6,992.79-4,221.84

Finding the Fourth Proportional to 5,076.21, 6,992.79 and 4,221.84

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Solution

The fourth proportional to 5,076.21, 6,992.79 and 4,221.84 is: 5,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.21 : 6,992.79 = 4,221.84 : x
  2. Step 2: Convert to fraction form
    5,076.21/6,992.79 = 4,221.84/x
  3. Step 3: Cross multiply
    5,076.21x = 6,992.79 × 4,221.84
  4. Step 4: Simplify right side
    5,076.21x = 29,522,440.53
  5. Step 5: Solve for x
    x = 29,522,440.53/5,076.21
  6. Step 6: Final answer
    x = 5,815.84

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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.