Home / 5,465.86-8,198.78-2,540.74

Finding the Fourth Proportional to 5,465.86, 8,198.78 and 2,540.74

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Solution

The fourth proportional to 5,465.86, 8,198.78 and 2,540.74 is: 3,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,465.86 : 8,198.78 = 2,540.74 : x
  2. Step 2: Convert to fraction form
    5,465.86/8,198.78 = 2,540.74/x
  3. Step 3: Cross multiply
    5,465.86x = 8,198.78 × 2,540.74
  4. Step 4: Simplify right side
    5,465.86x = 20,830,968.30
  5. Step 5: Solve for x
    x = 20,830,968.30/5,465.86
  6. Step 6: Final answer
    x = 3,811.11

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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.