Home / 2,231.80-3,078.52-1,475.58

Finding the Fourth Proportional to 2,231.80, 3,078.52 and 1,475.58

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Solution

The fourth proportional to 2,231.80, 3,078.52 and 1,475.58 is: 2,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.80 : 3,078.52 = 1,475.58 : x
  2. Step 2: Convert to fraction form
    2,231.80/3,078.52 = 1,475.58/x
  3. Step 3: Cross multiply
    2,231.80x = 3,078.52 × 1,475.58
  4. Step 4: Simplify right side
    2,231.80x = 4,542,599.48
  5. Step 5: Solve for x
    x = 4,542,599.48/2,231.80
  6. Step 6: Final answer
    x = 2,035.39

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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.