Home / 3,161.98-4,365.57-2,166.94

Finding the Fourth Proportional to 3,161.98, 4,365.57 and 2,166.94

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Solution

The fourth proportional to 3,161.98, 4,365.57 and 2,166.94 is: 2,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.98 : 4,365.57 = 2,166.94 : x
  2. Step 2: Convert to fraction form
    3,161.98/4,365.57 = 2,166.94/x
  3. Step 3: Cross multiply
    3,161.98x = 4,365.57 × 2,166.94
  4. Step 4: Simplify right side
    3,161.98x = 9,459,928.26
  5. Step 5: Solve for x
    x = 9,459,928.26/3,161.98
  6. Step 6: Final answer
    x = 2,991.77

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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.