Home / 2,642.99-3,964.32-1,181.75

Finding the Fourth Proportional to 2,642.99, 3,964.32 and 1,181.75

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Solution

The fourth proportional to 2,642.99, 3,964.32 and 1,181.75 is: 1,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.99 : 3,964.32 = 1,181.75 : x
  2. Step 2: Convert to fraction form
    2,642.99/3,964.32 = 1,181.75/x
  3. Step 3: Cross multiply
    2,642.99x = 3,964.32 × 1,181.75
  4. Step 4: Simplify right side
    2,642.99x = 4,684,815.34
  5. Step 5: Solve for x
    x = 4,684,815.34/2,642.99
  6. Step 6: Final answer
    x = 1,772.55

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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.