Home / 3,180.63-4,764.47-1,331.00

Finding the Fourth Proportional to 3,180.63, 4,764.47 and 1,331.00

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Solution

The fourth proportional to 3,180.63, 4,764.47 and 1,331.00 is: 1,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.63 : 4,764.47 = 1,331.00 : x
  2. Step 2: Convert to fraction form
    3,180.63/4,764.47 = 1,331.00/x
  3. Step 3: Cross multiply
    3,180.63x = 4,764.47 × 1,331.00
  4. Step 4: Simplify right side
    3,180.63x = 6,341,479.09
  5. Step 5: Solve for x
    x = 6,341,479.09/3,180.63
  6. Step 6: Final answer
    x = 1,993.78

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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.