Home / 3,131.44-4,695.10-1,022.80

Finding the Fourth Proportional to 3,131.44, 4,695.10 and 1,022.80

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Solution

The fourth proportional to 3,131.44, 4,695.10 and 1,022.80 is: 1,533.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.44 : 4,695.10 = 1,022.80 : x
  2. Step 2: Convert to fraction form
    3,131.44/4,695.10 = 1,022.80/x
  3. Step 3: Cross multiply
    3,131.44x = 4,695.10 × 1,022.80
  4. Step 4: Simplify right side
    3,131.44x = 4,802,148.28
  5. Step 5: Solve for x
    x = 4,802,148.28/3,131.44
  6. Step 6: Final answer
    x = 1,533.53

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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.