Home / 7,179.72-9,907.35-4,154.37

Finding the Fourth Proportional to 7,179.72, 9,907.35 and 4,154.37

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Solution

The fourth proportional to 7,179.72, 9,907.35 and 4,154.37 is: 5,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.72 : 9,907.35 = 4,154.37 : x
  2. Step 2: Convert to fraction form
    7,179.72/9,907.35 = 4,154.37/x
  3. Step 3: Cross multiply
    7,179.72x = 9,907.35 × 4,154.37
  4. Step 4: Simplify right side
    7,179.72x = 41,158,797.62
  5. Step 5: Solve for x
    x = 41,158,797.62/7,179.72
  6. Step 6: Final answer
    x = 5,732.65

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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.