Home / 3,129.21-4,692.24-1,180.08

Finding the Fourth Proportional to 3,129.21, 4,692.24 and 1,180.08

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Solution

The fourth proportional to 3,129.21, 4,692.24 and 1,180.08 is: 1,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.21 : 4,692.24 = 1,180.08 : x
  2. Step 2: Convert to fraction form
    3,129.21/4,692.24 = 1,180.08/x
  3. Step 3: Cross multiply
    3,129.21x = 4,692.24 × 1,180.08
  4. Step 4: Simplify right side
    3,129.21x = 5,537,218.58
  5. Step 5: Solve for x
    x = 5,537,218.58/3,129.21
  6. Step 6: Final answer
    x = 1,769.53

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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.