Home / 5,090.59-7,028.45-3,179.33

Finding the Fourth Proportional to 5,090.59, 7,028.45 and 3,179.33

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Solution

The fourth proportional to 5,090.59, 7,028.45 and 3,179.33 is: 4,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.59 : 7,028.45 = 3,179.33 : x
  2. Step 2: Convert to fraction form
    5,090.59/7,028.45 = 3,179.33/x
  3. Step 3: Cross multiply
    5,090.59x = 7,028.45 × 3,179.33
  4. Step 4: Simplify right side
    5,090.59x = 22,345,734.74
  5. Step 5: Solve for x
    x = 22,345,734.74/5,090.59
  6. Step 6: Final answer
    x = 4,389.62

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1.5x scale

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.