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Finding the Fourth Proportional to 3,901.66, 5,852.87 and 1,128.27

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Solution

The fourth proportional to 3,901.66, 5,852.87 and 1,128.27 is: 1,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.66 : 5,852.87 = 1,128.27 : x
  2. Step 2: Convert to fraction form
    3,901.66/5,852.87 = 1,128.27/x
  3. Step 3: Cross multiply
    3,901.66x = 5,852.87 × 1,128.27
  4. Step 4: Simplify right side
    3,901.66x = 6,603,620.70
  5. Step 5: Solve for x
    x = 6,603,620.70/3,901.66
  6. Step 6: Final answer
    x = 1,692.52

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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.