Home / 5,219.91-7,200.56-3,728.63

Finding the Fourth Proportional to 5,219.91, 7,200.56 and 3,728.63

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Solution

The fourth proportional to 5,219.91, 7,200.56 and 3,728.63 is: 5,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.91 : 7,200.56 = 3,728.63 : x
  2. Step 2: Convert to fraction form
    5,219.91/7,200.56 = 3,728.63/x
  3. Step 3: Cross multiply
    5,219.91x = 7,200.56 × 3,728.63
  4. Step 4: Simplify right side
    5,219.91x = 26,848,251.36
  5. Step 5: Solve for x
    x = 26,848,251.36/5,219.91
  6. Step 6: Final answer
    x = 5,143.43

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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.