Home / 2,785.37-4,178.09-1,324.22

Finding the Fourth Proportional to 2,785.37, 4,178.09 and 1,324.22

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Solution

The fourth proportional to 2,785.37, 4,178.09 and 1,324.22 is: 1,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.37 : 4,178.09 = 1,324.22 : x
  2. Step 2: Convert to fraction form
    2,785.37/4,178.09 = 1,324.22/x
  3. Step 3: Cross multiply
    2,785.37x = 4,178.09 × 1,324.22
  4. Step 4: Simplify right side
    2,785.37x = 5,532,724.10
  5. Step 5: Solve for x
    x = 5,532,724.10/2,785.37
  6. Step 6: Final answer
    x = 1,986.36

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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.