Home / 3,122.43-4,307.99-1,777.95

Finding the Fourth Proportional to 3,122.43, 4,307.99 and 1,777.95

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Solution

The fourth proportional to 3,122.43, 4,307.99 and 1,777.95 is: 2,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.43 : 4,307.99 = 1,777.95 : x
  2. Step 2: Convert to fraction form
    3,122.43/4,307.99 = 1,777.95/x
  3. Step 3: Cross multiply
    3,122.43x = 4,307.99 × 1,777.95
  4. Step 4: Simplify right side
    3,122.43x = 7,659,390.82
  5. Step 5: Solve for x
    x = 7,659,390.82/3,122.43
  6. Step 6: Final answer
    x = 2,453.02

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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.