Home / 5,216.67-7,199.21-2,858.90

Finding the Fourth Proportional to 5,216.67, 7,199.21 and 2,858.90

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Solution

The fourth proportional to 5,216.67, 7,199.21 and 2,858.90 is: 3,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.67 : 7,199.21 = 2,858.90 : x
  2. Step 2: Convert to fraction form
    5,216.67/7,199.21 = 2,858.90/x
  3. Step 3: Cross multiply
    5,216.67x = 7,199.21 × 2,858.90
  4. Step 4: Simplify right side
    5,216.67x = 20,581,792.62
  5. Step 5: Solve for x
    x = 20,581,792.62/5,216.67
  6. Step 6: Final answer
    x = 3,945.39

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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.