Home / 2,163.95-2,986.26-1,232.45

Finding the Fourth Proportional to 2,163.95, 2,986.26 and 1,232.45

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Solution

The fourth proportional to 2,163.95, 2,986.26 and 1,232.45 is: 1,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.95 : 2,986.26 = 1,232.45 : x
  2. Step 2: Convert to fraction form
    2,163.95/2,986.26 = 1,232.45/x
  3. Step 3: Cross multiply
    2,163.95x = 2,986.26 × 1,232.45
  4. Step 4: Simplify right side
    2,163.95x = 3,680,396.58
  5. Step 5: Solve for x
    x = 3,680,396.58/2,163.95
  6. Step 6: Final answer
    x = 1,700.78

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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.