Home / 4,908.20-7,362.78-1,398.36

Finding the Fourth Proportional to 4,908.20, 7,362.78 and 1,398.36

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Solution

The fourth proportional to 4,908.20, 7,362.78 and 1,398.36 is: 2,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.20 : 7,362.78 = 1,398.36 : x
  2. Step 2: Convert to fraction form
    4,908.20/7,362.78 = 1,398.36/x
  3. Step 3: Cross multiply
    4,908.20x = 7,362.78 × 1,398.36
  4. Step 4: Simplify right side
    4,908.20x = 10,295,817.04
  5. Step 5: Solve for x
    x = 10,295,817.04/4,908.20
  6. Step 6: Final answer
    x = 2,097.68

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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.