Home / 3,128.54-4,692.98-1,180.76

Finding the Fourth Proportional to 3,128.54, 4,692.98 and 1,180.76

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Solution

The fourth proportional to 3,128.54, 4,692.98 and 1,180.76 is: 1,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.54 : 4,692.98 = 1,180.76 : x
  2. Step 2: Convert to fraction form
    3,128.54/4,692.98 = 1,180.76/x
  3. Step 3: Cross multiply
    3,128.54x = 4,692.98 × 1,180.76
  4. Step 4: Simplify right side
    3,128.54x = 5,541,262.55
  5. Step 5: Solve for x
    x = 5,541,262.55/3,128.54
  6. Step 6: Final answer
    x = 1,771.20

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1.5x scale

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.