Home / 1,850.40-2,777.60-984.48

Finding the Fourth Proportional to 1,850.40, 2,777.60 and 984.48

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Solution

The fourth proportional to 1,850.40, 2,777.60 and 984.48 is: 1,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.40 : 2,777.60 = 984.48 : x
  2. Step 2: Convert to fraction form
    1,850.40/2,777.60 = 984.48/x
  3. Step 3: Cross multiply
    1,850.40x = 2,777.60 × 984.48
  4. Step 4: Simplify right side
    1,850.40x = 2,734,491.65
  5. Step 5: Solve for x
    x = 2,734,491.65/1,850.40
  6. Step 6: Final answer
    x = 1,477.78

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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.