Home / 4,518.45-6,778.08-1,231.47

Finding the Fourth Proportional to 4,518.45, 6,778.08 and 1,231.47

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Solution

The fourth proportional to 4,518.45, 6,778.08 and 1,231.47 is: 1,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.45 : 6,778.08 = 1,231.47 : x
  2. Step 2: Convert to fraction form
    4,518.45/6,778.08 = 1,231.47/x
  3. Step 3: Cross multiply
    4,518.45x = 6,778.08 × 1,231.47
  4. Step 4: Simplify right side
    4,518.45x = 8,347,002.18
  5. Step 5: Solve for x
    x = 8,347,002.18/4,518.45
  6. Step 6: Final answer
    x = 1,847.32

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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.