Home / 3,645.31-5,467.70-2,181.19

Finding the Fourth Proportional to 3,645.31, 5,467.70 and 2,181.19

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Solution

The fourth proportional to 3,645.31, 5,467.70 and 2,181.19 is: 3,271.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.31 : 5,467.70 = 2,181.19 : x
  2. Step 2: Convert to fraction form
    3,645.31/5,467.70 = 2,181.19/x
  3. Step 3: Cross multiply
    3,645.31x = 5,467.70 × 2,181.19
  4. Step 4: Simplify right side
    3,645.31x = 11,926,081.66
  5. Step 5: Solve for x
    x = 11,926,081.66/3,645.31
  6. Step 6: Final answer
    x = 3,271.62

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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.