Home / 4,217-5,821.62-2,646.68

Finding the Fourth Proportional to 4,217, 5,821.62 and 2,646.68

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Solution

The fourth proportional to 4,217, 5,821.62 and 2,646.68 is: 3,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217 : 5,821.62 = 2,646.68 : x
  2. Step 2: Convert to fraction form
    4,217/5,821.62 = 2,646.68/x
  3. Step 3: Cross multiply
    4,217x = 5,821.62 × 2,646.68
  4. Step 4: Simplify right side
    4,217x = 15,407,965.22
  5. Step 5: Solve for x
    x = 15,407,965.22/4,217
  6. Step 6: Final answer
    x = 3,653.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.