Home / 7,090.44-10,629.09-3,139.60

Finding the Fourth Proportional to 7,090.44, 10,629.09 and 3,139.60

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Solution

The fourth proportional to 7,090.44, 10,629.09 and 3,139.60 is: 4,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.44 : 10,629.09 = 3,139.60 : x
  2. Step 2: Convert to fraction form
    7,090.44/10,629.09 = 3,139.60/x
  3. Step 3: Cross multiply
    7,090.44x = 10,629.09 × 3,139.60
  4. Step 4: Simplify right side
    7,090.44x = 33,371,022.12
  5. Step 5: Solve for x
    x = 33,371,022.12/7,090.44
  6. Step 6: Final answer
    x = 4,706.48

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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.