Home / 4,162.05-6,241.64-1,388.07

Finding the Fourth Proportional to 4,162.05, 6,241.64 and 1,388.07

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Solution

The fourth proportional to 4,162.05, 6,241.64 and 1,388.07 is: 2,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,162.05 : 6,241.64 = 1,388.07 : x
  2. Step 2: Convert to fraction form
    4,162.05/6,241.64 = 1,388.07/x
  3. Step 3: Cross multiply
    4,162.05x = 6,241.64 × 1,388.07
  4. Step 4: Simplify right side
    4,162.05x = 8,663,826.29
  5. Step 5: Solve for x
    x = 8,663,826.29/4,162.05
  6. Step 6: Final answer
    x = 2,081.62

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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.