Home / 4,322.40-6,481.68-1,724.64

Finding the Fourth Proportional to 4,322.40, 6,481.68 and 1,724.64

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Solution

The fourth proportional to 4,322.40, 6,481.68 and 1,724.64 is: 2,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.40 : 6,481.68 = 1,724.64 : x
  2. Step 2: Convert to fraction form
    4,322.40/6,481.68 = 1,724.64/x
  3. Step 3: Cross multiply
    4,322.40x = 6,481.68 × 1,724.64
  4. Step 4: Simplify right side
    4,322.40x = 11,178,564.60
  5. Step 5: Solve for x
    x = 11,178,564.60/4,322.40
  6. Step 6: Final answer
    x = 2,586.19

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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.