Home / 4,217.74-6,326.91-1,620.69

Finding the Fourth Proportional to 4,217.74, 6,326.91 and 1,620.69

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Solution

The fourth proportional to 4,217.74, 6,326.91 and 1,620.69 is: 2,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.74 : 6,326.91 = 1,620.69 : x
  2. Step 2: Convert to fraction form
    4,217.74/6,326.91 = 1,620.69/x
  3. Step 3: Cross multiply
    4,217.74x = 6,326.91 × 1,620.69
  4. Step 4: Simplify right side
    4,217.74x = 10,253,959.77
  5. Step 5: Solve for x
    x = 10,253,959.77/4,217.74
  6. Step 6: Final answer
    x = 2,431.15

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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.