Home / 2,478.91-3,718.37-1,181.29

Finding the Fourth Proportional to 2,478.91, 3,718.37 and 1,181.29

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Solution

The fourth proportional to 2,478.91, 3,718.37 and 1,181.29 is: 1,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.91 : 3,718.37 = 1,181.29 : x
  2. Step 2: Convert to fraction form
    2,478.91/3,718.37 = 1,181.29/x
  3. Step 3: Cross multiply
    2,478.91x = 3,718.37 × 1,181.29
  4. Step 4: Simplify right side
    2,478.91x = 4,392,473.30
  5. Step 5: Solve for x
    x = 4,392,473.30/2,478.91
  6. Step 6: Final answer
    x = 1,771.94

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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.