Home / 4,079.75-6,122.70-2,986.93

Finding the Fourth Proportional to 4,079.75, 6,122.70 and 2,986.93

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Solution

The fourth proportional to 4,079.75, 6,122.70 and 2,986.93 is: 4,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.75 : 6,122.70 = 2,986.93 : x
  2. Step 2: Convert to fraction form
    4,079.75/6,122.70 = 2,986.93/x
  3. Step 3: Cross multiply
    4,079.75x = 6,122.70 × 2,986.93
  4. Step 4: Simplify right side
    4,079.75x = 18,288,076.31
  5. Step 5: Solve for x
    x = 18,288,076.31/4,079.75
  6. Step 6: Final answer
    x = 4,482.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.