Home / 7,100.44-10,641.42-3,809.68

Finding the Fourth Proportional to 7,100.44, 10,641.42 and 3,809.68

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Solution

The fourth proportional to 7,100.44, 10,641.42 and 3,809.68 is: 5,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.44 : 10,641.42 = 3,809.68 : x
  2. Step 2: Convert to fraction form
    7,100.44/10,641.42 = 3,809.68/x
  3. Step 3: Cross multiply
    7,100.44x = 10,641.42 × 3,809.68
  4. Step 4: Simplify right side
    7,100.44x = 40,540,378.34
  5. Step 5: Solve for x
    x = 40,540,378.34/7,100.44
  6. Step 6: Final answer
    x = 5,709.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.