Home / 1,122.02-1,682.96-300.36

Finding the Fourth Proportional to 1,122.02, 1,682.96 and 300.36

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Solution

The fourth proportional to 1,122.02, 1,682.96 and 300.36 is: 450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.02 : 1,682.96 = 300.36 : x
  2. Step 2: Convert to fraction form
    1,122.02/1,682.96 = 300.36/x
  3. Step 3: Cross multiply
    1,122.02x = 1,682.96 × 300.36
  4. Step 4: Simplify right side
    1,122.02x = 505,493.87
  5. Step 5: Solve for x
    x = 505,493.87/1,122.02
  6. Step 6: Final answer
    x = 450.52

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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.