Home / 5,090.29-7,023.78-3,101.47

Finding the Fourth Proportional to 5,090.29, 7,023.78 and 3,101.47

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Solution

The fourth proportional to 5,090.29, 7,023.78 and 3,101.47 is: 4,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.29 : 7,023.78 = 3,101.47 : x
  2. Step 2: Convert to fraction form
    5,090.29/7,023.78 = 3,101.47/x
  3. Step 3: Cross multiply
    5,090.29x = 7,023.78 × 3,101.47
  4. Step 4: Simplify right side
    5,090.29x = 21,784,025.40
  5. Step 5: Solve for x
    x = 21,784,025.40/5,090.29
  6. Step 6: Final answer
    x = 4,279.53

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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.