Home / 4,908.62-7,358.78-2,133.20

Finding the Fourth Proportional to 4,908.62, 7,358.78 and 2,133.20

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Solution

The fourth proportional to 4,908.62, 7,358.78 and 2,133.20 is: 3,198.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.62 : 7,358.78 = 2,133.20 : x
  2. Step 2: Convert to fraction form
    4,908.62/7,358.78 = 2,133.20/x
  3. Step 3: Cross multiply
    4,908.62x = 7,358.78 × 2,133.20
  4. Step 4: Simplify right side
    4,908.62x = 15,697,749.50
  5. Step 5: Solve for x
    x = 15,697,749.50/4,908.62
  6. Step 6: Final answer
    x = 3,198.00

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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.