Home / 3,218.86-4,441.93-1,892.49

Finding the Fourth Proportional to 3,218.86, 4,441.93 and 1,892.49

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Solution

The fourth proportional to 3,218.86, 4,441.93 and 1,892.49 is: 2,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.86 : 4,441.93 = 1,892.49 : x
  2. Step 2: Convert to fraction form
    3,218.86/4,441.93 = 1,892.49/x
  3. Step 3: Cross multiply
    3,218.86x = 4,441.93 × 1,892.49
  4. Step 4: Simplify right side
    3,218.86x = 8,406,308.11
  5. Step 5: Solve for x
    x = 8,406,308.11/3,218.86
  6. Step 6: Final answer
    x = 2,611.58

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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.