Home / 4,322.20-6,481.86-1,689.03

Finding the Fourth Proportional to 4,322.20, 6,481.86 and 1,689.03

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Solution

The fourth proportional to 4,322.20, 6,481.86 and 1,689.03 is: 2,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.20 : 6,481.86 = 1,689.03 : x
  2. Step 2: Convert to fraction form
    4,322.20/6,481.86 = 1,689.03/x
  3. Step 3: Cross multiply
    4,322.20x = 6,481.86 × 1,689.03
  4. Step 4: Simplify right side
    4,322.20x = 10,948,031.69
  5. Step 5: Solve for x
    x = 10,948,031.69/4,322.20
  6. Step 6: Final answer
    x = 2,532.98

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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.