Home / 3,128.28-4,692.44-1,182.68

Finding the Fourth Proportional to 3,128.28, 4,692.44 and 1,182.68

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Solution

The fourth proportional to 3,128.28, 4,692.44 and 1,182.68 is: 1,774.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.28 : 4,692.44 = 1,182.68 : x
  2. Step 2: Convert to fraction form
    3,128.28/4,692.44 = 1,182.68/x
  3. Step 3: Cross multiply
    3,128.28x = 4,692.44 × 1,182.68
  4. Step 4: Simplify right side
    3,128.28x = 5,549,654.94
  5. Step 5: Solve for x
    x = 5,549,654.94/3,128.28
  6. Step 6: Final answer
    x = 1,774.03

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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.