Home / 5,189.37-7,777.36-1,898.54

Finding the Fourth Proportional to 5,189.37, 7,777.36 and 1,898.54

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Solution

The fourth proportional to 5,189.37, 7,777.36 and 1,898.54 is: 2,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.37 : 7,777.36 = 1,898.54 : x
  2. Step 2: Convert to fraction form
    5,189.37/7,777.36 = 1,898.54/x
  3. Step 3: Cross multiply
    5,189.37x = 7,777.36 × 1,898.54
  4. Step 4: Simplify right side
    5,189.37x = 14,765,629.05
  5. Step 5: Solve for x
    x = 14,765,629.05/5,189.37
  6. Step 6: Final answer
    x = 2,845.36

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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.