Home / 3,216.12-4,438.26-1,889.84

Finding the Fourth Proportional to 3,216.12, 4,438.26 and 1,889.84

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Solution

The fourth proportional to 3,216.12, 4,438.26 and 1,889.84 is: 2,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.12 : 4,438.26 = 1,889.84 : x
  2. Step 2: Convert to fraction form
    3,216.12/4,438.26 = 1,889.84/x
  3. Step 3: Cross multiply
    3,216.12x = 4,438.26 × 1,889.84
  4. Step 4: Simplify right side
    3,216.12x = 8,387,579.09
  5. Step 5: Solve for x
    x = 8,387,579.09/3,216.12
  6. Step 6: Final answer
    x = 2,607.98

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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.