Home / 3,331.51-4,989.75-1,942.77

Finding the Fourth Proportional to 3,331.51, 4,989.75 and 1,942.77

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Solution

The fourth proportional to 3,331.51, 4,989.75 and 1,942.77 is: 2,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.51 : 4,989.75 = 1,942.77 : x
  2. Step 2: Convert to fraction form
    3,331.51/4,989.75 = 1,942.77/x
  3. Step 3: Cross multiply
    3,331.51x = 4,989.75 × 1,942.77
  4. Step 4: Simplify right side
    3,331.51x = 9,693,930.89
  5. Step 5: Solve for x
    x = 9,693,930.89/3,331.51
  6. Step 6: Final answer
    x = 2,909.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.