Home / 1,228.44-1,851.33-1,155.48

Finding the Fourth Proportional to 1,228.44, 1,851.33 and 1,155.48

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Solution

The fourth proportional to 1,228.44, 1,851.33 and 1,155.48 is: 1,741.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.44 : 1,851.33 = 1,155.48 : x
  2. Step 2: Convert to fraction form
    1,228.44/1,851.33 = 1,155.48/x
  3. Step 3: Cross multiply
    1,228.44x = 1,851.33 × 1,155.48
  4. Step 4: Simplify right side
    1,228.44x = 2,139,174.79
  5. Step 5: Solve for x
    x = 2,139,174.79/1,228.44
  6. Step 6: Final answer
    x = 1,741.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.