Home / 3,167.84-4,739.88-2,620.28

Finding the Fourth Proportional to 3,167.84, 4,739.88 and 2,620.28

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Solution

The fourth proportional to 3,167.84, 4,739.88 and 2,620.28 is: 3,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.84 : 4,739.88 = 2,620.28 : x
  2. Step 2: Convert to fraction form
    3,167.84/4,739.88 = 2,620.28/x
  3. Step 3: Cross multiply
    3,167.84x = 4,739.88 × 2,620.28
  4. Step 4: Simplify right side
    3,167.84x = 12,419,812.77
  5. Step 5: Solve for x
    x = 12,419,812.77/3,167.84
  6. Step 6: Final answer
    x = 3,920.59

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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.