Home / 3,431.77-4,735.81-1,940.17

Finding the Fourth Proportional to 3,431.77, 4,735.81 and 1,940.17

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Solution

The fourth proportional to 3,431.77, 4,735.81 and 1,940.17 is: 2,677.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.77 : 4,735.81 = 1,940.17 : x
  2. Step 2: Convert to fraction form
    3,431.77/4,735.81 = 1,940.17/x
  3. Step 3: Cross multiply
    3,431.77x = 4,735.81 × 1,940.17
  4. Step 4: Simplify right side
    3,431.77x = 9,188,276.49
  5. Step 5: Solve for x
    x = 9,188,276.49/3,431.77
  6. Step 6: Final answer
    x = 2,677.42

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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.