Home / 3,109.14-4,290.67-1,692.87

Finding the Fourth Proportional to 3,109.14, 4,290.67 and 1,692.87

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Solution

The fourth proportional to 3,109.14, 4,290.67 and 1,692.87 is: 2,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.14 : 4,290.67 = 1,692.87 : x
  2. Step 2: Convert to fraction form
    3,109.14/4,290.67 = 1,692.87/x
  3. Step 3: Cross multiply
    3,109.14x = 4,290.67 × 1,692.87
  4. Step 4: Simplify right side
    3,109.14x = 7,263,548.64
  5. Step 5: Solve for x
    x = 7,263,548.64/3,109.14
  6. Step 6: Final answer
    x = 2,336.19

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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.