Home / 5,905.49-8,858.44-3,128.41

Finding the Fourth Proportional to 5,905.49, 8,858.44 and 3,128.41

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Solution

The fourth proportional to 5,905.49, 8,858.44 and 3,128.41 is: 4,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.49 : 8,858.44 = 3,128.41 : x
  2. Step 2: Convert to fraction form
    5,905.49/8,858.44 = 3,128.41/x
  3. Step 3: Cross multiply
    5,905.49x = 8,858.44 × 3,128.41
  4. Step 4: Simplify right side
    5,905.49x = 27,712,814.04
  5. Step 5: Solve for x
    x = 27,712,814.04/5,905.49
  6. Step 6: Final answer
    x = 4,692.72

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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.