Home / 5,141.21-7,090.61-3,150.36

Finding the Fourth Proportional to 5,141.21, 7,090.61 and 3,150.36

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Solution

The fourth proportional to 5,141.21, 7,090.61 and 3,150.36 is: 4,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.21 : 7,090.61 = 3,150.36 : x
  2. Step 2: Convert to fraction form
    5,141.21/7,090.61 = 3,150.36/x
  3. Step 3: Cross multiply
    5,141.21x = 7,090.61 × 3,150.36
  4. Step 4: Simplify right side
    5,141.21x = 22,337,958.37
  5. Step 5: Solve for x
    x = 22,337,958.37/5,141.21
  6. Step 6: Final answer
    x = 4,344.89

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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.