Home / 3,129.57-4,692.53-1,181.93

Finding the Fourth Proportional to 3,129.57, 4,692.53 and 1,181.93

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Solution

The fourth proportional to 3,129.57, 4,692.53 and 1,181.93 is: 1,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.57 : 4,692.53 = 1,181.93 : x
  2. Step 2: Convert to fraction form
    3,129.57/4,692.53 = 1,181.93/x
  3. Step 3: Cross multiply
    3,129.57x = 4,692.53 × 1,181.93
  4. Step 4: Simplify right side
    3,129.57x = 5,546,221.48
  5. Step 5: Solve for x
    x = 5,546,221.48/3,129.57
  6. Step 6: Final answer
    x = 1,772.20

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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.