Home / 3,128.19-4,693.37-1,181.49

Finding the Fourth Proportional to 3,128.19, 4,693.37 and 1,181.49

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Solution

The fourth proportional to 3,128.19, 4,693.37 and 1,181.49 is: 1,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.19 : 4,693.37 = 1,181.49 : x
  2. Step 2: Convert to fraction form
    3,128.19/4,693.37 = 1,181.49/x
  3. Step 3: Cross multiply
    3,128.19x = 4,693.37 × 1,181.49
  4. Step 4: Simplify right side
    3,128.19x = 5,545,163.81
  5. Step 5: Solve for x
    x = 5,545,163.81/3,128.19
  6. Step 6: Final answer
    x = 1,772.64

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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.