Home / 4,921-7,372.50-3,869.08

Finding the Fourth Proportional to 4,921, 7,372.50 and 3,869.08

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Solution

The fourth proportional to 4,921, 7,372.50 and 3,869.08 is: 5,796.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921 : 7,372.50 = 3,869.08 : x
  2. Step 2: Convert to fraction form
    4,921/7,372.50 = 3,869.08/x
  3. Step 3: Cross multiply
    4,921x = 7,372.50 × 3,869.08
  4. Step 4: Simplify right side
    4,921x = 28,524,792.30
  5. Step 5: Solve for x
    x = 28,524,792.30/4,921
  6. Step 6: Final answer
    x = 5,796.54

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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.