Home / 5,383.45-7,427.46-3,145.42

Finding the Fourth Proportional to 5,383.45, 7,427.46 and 3,145.42

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Solution

The fourth proportional to 5,383.45, 7,427.46 and 3,145.42 is: 4,339.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.45 : 7,427.46 = 3,145.42 : x
  2. Step 2: Convert to fraction form
    5,383.45/7,427.46 = 3,145.42/x
  3. Step 3: Cross multiply
    5,383.45x = 7,427.46 × 3,145.42
  4. Step 4: Simplify right side
    5,383.45x = 23,362,481.23
  5. Step 5: Solve for x
    x = 23,362,481.23/5,383.45
  6. Step 6: Final answer
    x = 4,339.69

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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.