Home / 5,090.29-7,018.07-3,761.69

Finding the Fourth Proportional to 5,090.29, 7,018.07 and 3,761.69

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Solution

The fourth proportional to 5,090.29, 7,018.07 and 3,761.69 is: 5,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.29 : 7,018.07 = 3,761.69 : x
  2. Step 2: Convert to fraction form
    5,090.29/7,018.07 = 3,761.69/x
  3. Step 3: Cross multiply
    5,090.29x = 7,018.07 × 3,761.69
  4. Step 4: Simplify right side
    5,090.29x = 26,399,749.84
  5. Step 5: Solve for x
    x = 26,399,749.84/5,090.29
  6. Step 6: Final answer
    x = 5,186.30

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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.