Home / 4,321.20-6,481.80-4,004.40

Finding the Fourth Proportional to 4,321.20, 6,481.80 and 4,004.40

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Solution

The fourth proportional to 4,321.20, 6,481.80 and 4,004.40 is: 6,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.20 : 6,481.80 = 4,004.40 : x
  2. Step 2: Convert to fraction form
    4,321.20/6,481.80 = 4,004.40/x
  3. Step 3: Cross multiply
    4,321.20x = 6,481.80 × 4,004.40
  4. Step 4: Simplify right side
    4,321.20x = 25,955,719.92
  5. Step 5: Solve for x
    x = 25,955,719.92/4,321.20
  6. Step 6: Final answer
    x = 6,006.60

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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.