Home / 4,991.50-6,890.97-3,002.50

Finding the Fourth Proportional to 4,991.50, 6,890.97 and 3,002.50

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Solution

The fourth proportional to 4,991.50, 6,890.97 and 3,002.50 is: 4,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.50 : 6,890.97 = 3,002.50 : x
  2. Step 2: Convert to fraction form
    4,991.50/6,890.97 = 3,002.50/x
  3. Step 3: Cross multiply
    4,991.50x = 6,890.97 × 3,002.50
  4. Step 4: Simplify right side
    4,991.50x = 20,690,137.43
  5. Step 5: Solve for x
    x = 20,690,137.43/4,991.50
  6. Step 6: Final answer
    x = 4,145.07

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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.