Home / 4,081.80-6,125.79-2,988.99

Finding the Fourth Proportional to 4,081.80, 6,125.79 and 2,988.99

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Solution

The fourth proportional to 4,081.80, 6,125.79 and 2,988.99 is: 4,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.80 : 6,125.79 = 2,988.99 : x
  2. Step 2: Convert to fraction form
    4,081.80/6,125.79 = 2,988.99/x
  3. Step 3: Cross multiply
    4,081.80x = 6,125.79 × 2,988.99
  4. Step 4: Simplify right side
    4,081.80x = 18,309,925.05
  5. Step 5: Solve for x
    x = 18,309,925.05/4,081.80
  6. Step 6: Final answer
    x = 4,485.75

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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.