Home / 2,945.58-4,420.02-1,190.76

Finding the Fourth Proportional to 2,945.58, 4,420.02 and 1,190.76

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Solution

The fourth proportional to 2,945.58, 4,420.02 and 1,190.76 is: 1,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.58 : 4,420.02 = 1,190.76 : x
  2. Step 2: Convert to fraction form
    2,945.58/4,420.02 = 1,190.76/x
  3. Step 3: Cross multiply
    2,945.58x = 4,420.02 × 1,190.76
  4. Step 4: Simplify right side
    2,945.58x = 5,263,183.02
  5. Step 5: Solve for x
    x = 5,263,183.02/2,945.58
  6. Step 6: Final answer
    x = 1,786.81

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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.