Home / 1,622.93-2,436.41-1,078.61

Finding the Fourth Proportional to 1,622.93, 2,436.41 and 1,078.61

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Solution

The fourth proportional to 1,622.93, 2,436.41 and 1,078.61 is: 1,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.93 : 2,436.41 = 1,078.61 : x
  2. Step 2: Convert to fraction form
    1,622.93/2,436.41 = 1,078.61/x
  3. Step 3: Cross multiply
    1,622.93x = 2,436.41 × 1,078.61
  4. Step 4: Simplify right side
    1,622.93x = 2,627,926.70
  5. Step 5: Solve for x
    x = 2,627,926.70/1,622.93
  6. Step 6: Final answer
    x = 1,619.25

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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.