Home / 3,182.21-4,390.87-1,922.42

Finding the Fourth Proportional to 3,182.21, 4,390.87 and 1,922.42

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Solution

The fourth proportional to 3,182.21, 4,390.87 and 1,922.42 is: 2,652.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.21 : 4,390.87 = 1,922.42 : x
  2. Step 2: Convert to fraction form
    3,182.21/4,390.87 = 1,922.42/x
  3. Step 3: Cross multiply
    3,182.21x = 4,390.87 × 1,922.42
  4. Step 4: Simplify right side
    3,182.21x = 8,441,096.31
  5. Step 5: Solve for x
    x = 8,441,096.31/3,182.21
  6. Step 6: Final answer
    x = 2,652.59

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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.