Home / 2,271.25-3,406.95-627.79

Finding the Fourth Proportional to 2,271.25, 3,406.95 and 627.79

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Solution

The fourth proportional to 2,271.25, 3,406.95 and 627.79 is: 941.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.25 : 3,406.95 = 627.79 : x
  2. Step 2: Convert to fraction form
    2,271.25/3,406.95 = 627.79/x
  3. Step 3: Cross multiply
    2,271.25x = 3,406.95 × 627.79
  4. Step 4: Simplify right side
    2,271.25x = 2,138,849.14
  5. Step 5: Solve for x
    x = 2,138,849.14/2,271.25
  6. Step 6: Final answer
    x = 941.71

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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.