Home / 2,825.71-4,237.80-1,181.91

Finding the Fourth Proportional to 2,825.71, 4,237.80 and 1,181.91

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Solution

The fourth proportional to 2,825.71, 4,237.80 and 1,181.91 is: 1,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.71 : 4,237.80 = 1,181.91 : x
  2. Step 2: Convert to fraction form
    2,825.71/4,237.80 = 1,181.91/x
  3. Step 3: Cross multiply
    2,825.71x = 4,237.80 × 1,181.91
  4. Step 4: Simplify right side
    2,825.71x = 5,008,698.20
  5. Step 5: Solve for x
    x = 5,008,698.20/2,825.71
  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.