Home / 5,390.79-7,441.37-3,627.42

Finding the Fourth Proportional to 5,390.79, 7,441.37 and 3,627.42

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Solution

The fourth proportional to 5,390.79, 7,441.37 and 3,627.42 is: 5,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.79 : 7,441.37 = 3,627.42 : x
  2. Step 2: Convert to fraction form
    5,390.79/7,441.37 = 3,627.42/x
  3. Step 3: Cross multiply
    5,390.79x = 7,441.37 × 3,627.42
  4. Step 4: Simplify right side
    5,390.79x = 26,992,974.37
  5. Step 5: Solve for x
    x = 26,992,974.37/5,390.79
  6. Step 6: Final answer
    x = 5,007.24

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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.