Home / 3,858.89-5,325.27-2,090.50

Finding the Fourth Proportional to 3,858.89, 5,325.27 and 2,090.50

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Solution

The fourth proportional to 3,858.89, 5,325.27 and 2,090.50 is: 2,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.89 : 5,325.27 = 2,090.50 : x
  2. Step 2: Convert to fraction form
    3,858.89/5,325.27 = 2,090.50/x
  3. Step 3: Cross multiply
    3,858.89x = 5,325.27 × 2,090.50
  4. Step 4: Simplify right side
    3,858.89x = 11,132,476.94
  5. Step 5: Solve for x
    x = 11,132,476.94/3,858.89
  6. Step 6: Final answer
    x = 2,884.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.