Home / 2,267.78-3,128.26-1,559.54

Finding the Fourth Proportional to 2,267.78, 3,128.26 and 1,559.54

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Solution

The fourth proportional to 2,267.78, 3,128.26 and 1,559.54 is: 2,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.78 : 3,128.26 = 1,559.54 : x
  2. Step 2: Convert to fraction form
    2,267.78/3,128.26 = 1,559.54/x
  3. Step 3: Cross multiply
    2,267.78x = 3,128.26 × 1,559.54
  4. Step 4: Simplify right side
    2,267.78x = 4,878,646.60
  5. Step 5: Solve for x
    x = 4,878,646.60/2,267.78
  6. Step 6: Final answer
    x = 2,151.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.