Home / 4,078.80-6,115.44-1,612.94

Finding the Fourth Proportional to 4,078.80, 6,115.44 and 1,612.94

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Solution

The fourth proportional to 4,078.80, 6,115.44 and 1,612.94 is: 2,418.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.80 : 6,115.44 = 1,612.94 : x
  2. Step 2: Convert to fraction form
    4,078.80/6,115.44 = 1,612.94/x
  3. Step 3: Cross multiply
    4,078.80x = 6,115.44 × 1,612.94
  4. Step 4: Simplify right side
    4,078.80x = 9,863,837.79
  5. Step 5: Solve for x
    x = 9,863,837.79/4,078.80
  6. Step 6: Final answer
    x = 2,418.32

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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.