Home / 2,772.79-3,825.48-1,778.62

Finding the Fourth Proportional to 2,772.79, 3,825.48 and 1,778.62

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Solution

The fourth proportional to 2,772.79, 3,825.48 and 1,778.62 is: 2,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.79 : 3,825.48 = 1,778.62 : x
  2. Step 2: Convert to fraction form
    2,772.79/3,825.48 = 1,778.62/x
  3. Step 3: Cross multiply
    2,772.79x = 3,825.48 × 1,778.62
  4. Step 4: Simplify right side
    2,772.79x = 6,804,075.24
  5. Step 5: Solve for x
    x = 6,804,075.24/2,772.79
  6. Step 6: Final answer
    x = 2,453.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.