Home / 4,518.52-6,778.01-1,231.20

Finding the Fourth Proportional to 4,518.52, 6,778.01 and 1,231.20

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Solution

The fourth proportional to 4,518.52, 6,778.01 and 1,231.20 is: 1,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.52 : 6,778.01 = 1,231.20 : x
  2. Step 2: Convert to fraction form
    4,518.52/6,778.01 = 1,231.20/x
  3. Step 3: Cross multiply
    4,518.52x = 6,778.01 × 1,231.20
  4. Step 4: Simplify right side
    4,518.52x = 8,345,088.99
  5. Step 5: Solve for x
    x = 8,345,088.99/4,518.52
  6. Step 6: Final answer
    x = 1,846.86

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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.