Home / 7,322.35-10,984.21-2,938.78

Finding the Fourth Proportional to 7,322.35, 10,984.21 and 2,938.78

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Solution

The fourth proportional to 7,322.35, 10,984.21 and 2,938.78 is: 4,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.35 : 10,984.21 = 2,938.78 : x
  2. Step 2: Convert to fraction form
    7,322.35/10,984.21 = 2,938.78/x
  3. Step 3: Cross multiply
    7,322.35x = 10,984.21 × 2,938.78
  4. Step 4: Simplify right side
    7,322.35x = 32,280,183.05
  5. Step 5: Solve for x
    x = 32,280,183.05/7,322.35
  6. Step 6: Final answer
    x = 4,408.45

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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.