Home / 5,219.10-7,200.90-3,231.36

Finding the Fourth Proportional to 5,219.10, 7,200.90 and 3,231.36

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Solution

The fourth proportional to 5,219.10, 7,200.90 and 3,231.36 is: 4,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.10 : 7,200.90 = 3,231.36 : x
  2. Step 2: Convert to fraction form
    5,219.10/7,200.90 = 3,231.36/x
  3. Step 3: Cross multiply
    5,219.10x = 7,200.90 × 3,231.36
  4. Step 4: Simplify right side
    5,219.10x = 23,268,700.22
  5. Step 5: Solve for x
    x = 23,268,700.22/5,219.10
  6. Step 6: Final answer
    x = 4,458.37

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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.