Home / 4,889.62-7,333.08-1,378.81

Finding the Fourth Proportional to 4,889.62, 7,333.08 and 1,378.81

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Solution

The fourth proportional to 4,889.62, 7,333.08 and 1,378.81 is: 2,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.62 : 7,333.08 = 1,378.81 : x
  2. Step 2: Convert to fraction form
    4,889.62/7,333.08 = 1,378.81/x
  3. Step 3: Cross multiply
    4,889.62x = 7,333.08 × 1,378.81
  4. Step 4: Simplify right side
    4,889.62x = 10,110,924.03
  5. Step 5: Solve for x
    x = 10,110,924.03/4,889.62
  6. Step 6: Final answer
    x = 2,067.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.