Home / 2,879.19-4,309.49-1,490.62

Finding the Fourth Proportional to 2,879.19, 4,309.49 and 1,490.62

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Solution

The fourth proportional to 2,879.19, 4,309.49 and 1,490.62 is: 2,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.19 : 4,309.49 = 1,490.62 : x
  2. Step 2: Convert to fraction form
    2,879.19/4,309.49 = 1,490.62/x
  3. Step 3: Cross multiply
    2,879.19x = 4,309.49 × 1,490.62
  4. Step 4: Simplify right side
    2,879.19x = 6,423,811.98
  5. Step 5: Solve for x
    x = 6,423,811.98/2,879.19
  6. Step 6: Final answer
    x = 2,231.12

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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.