Home / 5,219.05-7,201.96-2,861.21

Finding the Fourth Proportional to 5,219.05, 7,201.96 and 2,861.21

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Solution

The fourth proportional to 5,219.05, 7,201.96 and 2,861.21 is: 3,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.05 : 7,201.96 = 2,861.21 : x
  2. Step 2: Convert to fraction form
    5,219.05/7,201.96 = 2,861.21/x
  3. Step 3: Cross multiply
    5,219.05x = 7,201.96 × 2,861.21
  4. Step 4: Simplify right side
    5,219.05x = 20,606,276.81
  5. Step 5: Solve for x
    x = 20,606,276.81/5,219.05
  6. Step 6: Final answer
    x = 3,948.28

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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.