Home / 4,078.86-6,118.20-1,305.53

Finding the Fourth Proportional to 4,078.86, 6,118.20 and 1,305.53

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Solution

The fourth proportional to 4,078.86, 6,118.20 and 1,305.53 is: 1,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.86 : 6,118.20 = 1,305.53 : x
  2. Step 2: Convert to fraction form
    4,078.86/6,118.20 = 1,305.53/x
  3. Step 3: Cross multiply
    4,078.86x = 6,118.20 × 1,305.53
  4. Step 4: Simplify right side
    4,078.86x = 7,987,468.79
  5. Step 5: Solve for x
    x = 7,987,468.79/4,078.86
  6. Step 6: Final answer
    x = 1,958.26

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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.