Home / 3,480.42-5,218.35-1,605.54

Finding the Fourth Proportional to 3,480.42, 5,218.35 and 1,605.54

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Solution

The fourth proportional to 3,480.42, 5,218.35 and 1,605.54 is: 2,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.42 : 5,218.35 = 1,605.54 : x
  2. Step 2: Convert to fraction form
    3,480.42/5,218.35 = 1,605.54/x
  3. Step 3: Cross multiply
    3,480.42x = 5,218.35 × 1,605.54
  4. Step 4: Simplify right side
    3,480.42x = 8,378,269.66
  5. Step 5: Solve for x
    x = 8,378,269.66/3,480.42
  6. Step 6: Final answer
    x = 2,407.26

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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.