Home / 5,905.74-8,858.82-3,128.66

Finding the Fourth Proportional to 5,905.74, 8,858.82 and 3,128.66

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Solution

The fourth proportional to 5,905.74, 8,858.82 and 3,128.66 is: 4,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.74 : 8,858.82 = 3,128.66 : x
  2. Step 2: Convert to fraction form
    5,905.74/8,858.82 = 3,128.66/x
  3. Step 3: Cross multiply
    5,905.74x = 8,858.82 × 3,128.66
  4. Step 4: Simplify right side
    5,905.74x = 27,716,205.81
  5. Step 5: Solve for x
    x = 27,716,205.81/5,905.74
  6. Step 6: Final answer
    x = 4,693.09

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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.