Home / 5,090.87-7,025.39-3,101.43

Finding the Fourth Proportional to 5,090.87, 7,025.39 and 3,101.43

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Solution

The fourth proportional to 5,090.87, 7,025.39 and 3,101.43 is: 4,279.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.87 : 7,025.39 = 3,101.43 : x
  2. Step 2: Convert to fraction form
    5,090.87/7,025.39 = 3,101.43/x
  3. Step 3: Cross multiply
    5,090.87x = 7,025.39 × 3,101.43
  4. Step 4: Simplify right side
    5,090.87x = 21,788,762.60
  5. Step 5: Solve for x
    x = 21,788,762.60/5,090.87
  6. Step 6: Final answer
    x = 4,279.97

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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.