Home / 5,090.58-7,022.70-3,100.68

Finding the Fourth Proportional to 5,090.58, 7,022.70 and 3,100.68

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Solution

The fourth proportional to 5,090.58, 7,022.70 and 3,100.68 is: 4,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.58 : 7,022.70 = 3,100.68 : x
  2. Step 2: Convert to fraction form
    5,090.58/7,022.70 = 3,100.68/x
  3. Step 3: Cross multiply
    5,090.58x = 7,022.70 × 3,100.68
  4. Step 4: Simplify right side
    5,090.58x = 21,775,145.44
  5. Step 5: Solve for x
    x = 21,775,145.44/5,090.58
  6. Step 6: Final answer
    x = 4,277.54

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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.