Home / 5,216.72-7,199.08-2,858.86

Finding the Fourth Proportional to 5,216.72, 7,199.08 and 2,858.86

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Solution

The fourth proportional to 5,216.72, 7,199.08 and 2,858.86 is: 3,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.72 : 7,199.08 = 2,858.86 : x
  2. Step 2: Convert to fraction form
    5,216.72/7,199.08 = 2,858.86/x
  3. Step 3: Cross multiply
    5,216.72x = 7,199.08 × 2,858.86
  4. Step 4: Simplify right side
    5,216.72x = 20,581,161.85
  5. Step 5: Solve for x
    x = 20,581,161.85/5,216.72
  6. Step 6: Final answer
    x = 3,945.23

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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.