Home / 3,281.67-4,922.80-1,090.42

Finding the Fourth Proportional to 3,281.67, 4,922.80 and 1,090.42

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Solution

The fourth proportional to 3,281.67, 4,922.80 and 1,090.42 is: 1,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.67 : 4,922.80 = 1,090.42 : x
  2. Step 2: Convert to fraction form
    3,281.67/4,922.80 = 1,090.42/x
  3. Step 3: Cross multiply
    3,281.67x = 4,922.80 × 1,090.42
  4. Step 4: Simplify right side
    3,281.67x = 5,367,904.54
  5. Step 5: Solve for x
    x = 5,367,904.54/3,281.67
  6. Step 6: Final answer
    x = 1,635.72

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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.