Home / 1,629.91-2,445.09-518.95

Finding the Fourth Proportional to 1,629.91, 2,445.09 and 518.95

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Solution

The fourth proportional to 1,629.91, 2,445.09 and 518.95 is: 778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.91 : 2,445.09 = 518.95 : x
  2. Step 2: Convert to fraction form
    1,629.91/2,445.09 = 518.95/x
  3. Step 3: Cross multiply
    1,629.91x = 2,445.09 × 518.95
  4. Step 4: Simplify right side
    1,629.91x = 1,268,879.46
  5. Step 5: Solve for x
    x = 1,268,879.46/1,629.91
  6. Step 6: Final answer
    x = 778.50

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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.