Home / 1,625.87-2,439.59-845.71

Finding the Fourth Proportional to 1,625.87, 2,439.59 and 845.71

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Solution

The fourth proportional to 1,625.87, 2,439.59 and 845.71 is: 1,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.87 : 2,439.59 = 845.71 : x
  2. Step 2: Convert to fraction form
    1,625.87/2,439.59 = 845.71/x
  3. Step 3: Cross multiply
    1,625.87x = 2,439.59 × 845.71
  4. Step 4: Simplify right side
    1,625.87x = 2,063,175.33
  5. Step 5: Solve for x
    x = 2,063,175.33/1,625.87
  6. Step 6: Final answer
    x = 1,268.97

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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.