Home / 2,163.34-2,986.77-1,418.38

Finding the Fourth Proportional to 2,163.34, 2,986.77 and 1,418.38

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Solution

The fourth proportional to 2,163.34, 2,986.77 and 1,418.38 is: 1,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.34 : 2,986.77 = 1,418.38 : x
  2. Step 2: Convert to fraction form
    2,163.34/2,986.77 = 1,418.38/x
  3. Step 3: Cross multiply
    2,163.34x = 2,986.77 × 1,418.38
  4. Step 4: Simplify right side
    2,163.34x = 4,236,374.83
  5. Step 5: Solve for x
    x = 4,236,374.83/2,163.34
  6. Step 6: Final answer
    x = 1,958.26

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1.5x scale

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.