Home / 4,243.08-6,365.88-1,321.80

Finding the Fourth Proportional to 4,243.08, 6,365.88 and 1,321.80

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Solution

The fourth proportional to 4,243.08, 6,365.88 and 1,321.80 is: 1,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.08 : 6,365.88 = 1,321.80 : x
  2. Step 2: Convert to fraction form
    4,243.08/6,365.88 = 1,321.80/x
  3. Step 3: Cross multiply
    4,243.08x = 6,365.88 × 1,321.80
  4. Step 4: Simplify right side
    4,243.08x = 8,414,420.18
  5. Step 5: Solve for x
    x = 8,414,420.18/4,243.08
  6. Step 6: Final answer
    x = 1,983.09

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1.5x scale

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.