Home / 5,418.39-8,114.54-2,778.93

Finding the Fourth Proportional to 5,418.39, 8,114.54 and 2,778.93

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Solution

The fourth proportional to 5,418.39, 8,114.54 and 2,778.93 is: 4,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.39 : 8,114.54 = 2,778.93 : x
  2. Step 2: Convert to fraction form
    5,418.39/8,114.54 = 2,778.93/x
  3. Step 3: Cross multiply
    5,418.39x = 8,114.54 × 2,778.93
  4. Step 4: Simplify right side
    5,418.39x = 22,549,724.75
  5. Step 5: Solve for x
    x = 22,549,724.75/5,418.39
  6. Step 6: Final answer
    x = 4,161.70

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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.