Home / 4,120.82-6,179.95-1,487.99

Finding the Fourth Proportional to 4,120.82, 6,179.95 and 1,487.99

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Solution

The fourth proportional to 4,120.82, 6,179.95 and 1,487.99 is: 2,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.82 : 6,179.95 = 1,487.99 : x
  2. Step 2: Convert to fraction form
    4,120.82/6,179.95 = 1,487.99/x
  3. Step 3: Cross multiply
    4,120.82x = 6,179.95 × 1,487.99
  4. Step 4: Simplify right side
    4,120.82x = 9,195,703.80
  5. Step 5: Solve for x
    x = 9,195,703.80/4,120.82
  6. Step 6: Final answer
    x = 2,231.52

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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.