Home / 2,422.95-3,634.21-779.05

Finding the Fourth Proportional to 2,422.95, 3,634.21 and 779.05

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Solution

The fourth proportional to 2,422.95, 3,634.21 and 779.05 is: 1,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.95 : 3,634.21 = 779.05 : x
  2. Step 2: Convert to fraction form
    2,422.95/3,634.21 = 779.05/x
  3. Step 3: Cross multiply
    2,422.95x = 3,634.21 × 779.05
  4. Step 4: Simplify right side
    2,422.95x = 2,831,231.30
  5. Step 5: Solve for x
    x = 2,831,231.30/2,422.95
  6. Step 6: Final answer
    x = 1,168.51

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1.5x scale

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.