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Finding the Fourth Proportional to 5,128.53, 7,692.93 and 2,936.22

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Solution

The fourth proportional to 5,128.53, 7,692.93 and 2,936.22 is: 4,404.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.53 : 7,692.93 = 2,936.22 : x
  2. Step 2: Convert to fraction form
    5,128.53/7,692.93 = 2,936.22/x
  3. Step 3: Cross multiply
    5,128.53x = 7,692.93 × 2,936.22
  4. Step 4: Simplify right side
    5,128.53x = 22,588,134.92
  5. Step 5: Solve for x
    x = 22,588,134.92/5,128.53
  6. Step 6: Final answer
    x = 4,404.41

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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.