Home / 2,380.95-3,571.94-1,211.12

Finding the Fourth Proportional to 2,380.95, 3,571.94 and 1,211.12

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Solution

The fourth proportional to 2,380.95, 3,571.94 and 1,211.12 is: 1,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.95 : 3,571.94 = 1,211.12 : x
  2. Step 2: Convert to fraction form
    2,380.95/3,571.94 = 1,211.12/x
  3. Step 3: Cross multiply
    2,380.95x = 3,571.94 × 1,211.12
  4. Step 4: Simplify right side
    2,380.95x = 4,326,024.06
  5. Step 5: Solve for x
    x = 4,326,024.06/2,380.95
  6. Step 6: Final answer
    x = 1,816.93

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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.