Home / 7,219.91-9,963.53-4,235.79

Finding the Fourth Proportional to 7,219.91, 9,963.53 and 4,235.79

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Solution

The fourth proportional to 7,219.91, 9,963.53 and 4,235.79 is: 5,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.91 : 9,963.53 = 4,235.79 : x
  2. Step 2: Convert to fraction form
    7,219.91/9,963.53 = 4,235.79/x
  3. Step 3: Cross multiply
    7,219.91x = 9,963.53 × 4,235.79
  4. Step 4: Simplify right side
    7,219.91x = 42,203,399.56
  5. Step 5: Solve for x
    x = 42,203,399.56/7,219.91
  6. Step 6: Final answer
    x = 5,845.42

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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.