Home / 5,219.75-7,203.43-2,861.89

Finding the Fourth Proportional to 5,219.75, 7,203.43 and 2,861.89

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Solution

The fourth proportional to 5,219.75, 7,203.43 and 2,861.89 is: 3,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.75 : 7,203.43 = 2,861.89 : x
  2. Step 2: Convert to fraction form
    5,219.75/7,203.43 = 2,861.89/x
  3. Step 3: Cross multiply
    5,219.75x = 7,203.43 × 2,861.89
  4. Step 4: Simplify right side
    5,219.75x = 20,615,460.50
  5. Step 5: Solve for x
    x = 20,615,460.50/5,219.75
  6. Step 6: Final answer
    x = 3,949.51

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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.