Home / 3,077.81-4,617.79-1,922.21

Finding the Fourth Proportional to 3,077.81, 4,617.79 and 1,922.21

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Solution

The fourth proportional to 3,077.81, 4,617.79 and 1,922.21 is: 2,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.81 : 4,617.79 = 1,922.21 : x
  2. Step 2: Convert to fraction form
    3,077.81/4,617.79 = 1,922.21/x
  3. Step 3: Cross multiply
    3,077.81x = 4,617.79 × 1,922.21
  4. Step 4: Simplify right side
    3,077.81x = 8,876,362.12
  5. Step 5: Solve for x
    x = 8,876,362.12/3,077.81
  6. Step 6: Final answer
    x = 2,883.99

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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.