Home / 5,219.37-7,202.72-2,861.51

Finding the Fourth Proportional to 5,219.37, 7,202.72 and 2,861.51

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Solution

The fourth proportional to 5,219.37, 7,202.72 and 2,861.51 is: 3,948.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.37 : 7,202.72 = 2,861.51 : x
  2. Step 2: Convert to fraction form
    5,219.37/7,202.72 = 2,861.51/x
  3. Step 3: Cross multiply
    5,219.37x = 7,202.72 × 2,861.51
  4. Step 4: Simplify right side
    5,219.37x = 20,610,659.01
  5. Step 5: Solve for x
    x = 20,610,659.01/5,219.37
  6. Step 6: Final answer
    x = 3,948.88

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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.