Home / 3,155.96-4,355.42-1,739.64

Finding the Fourth Proportional to 3,155.96, 4,355.42 and 1,739.64

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Solution

The fourth proportional to 3,155.96, 4,355.42 and 1,739.64 is: 2,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.96 : 4,355.42 = 1,739.64 : x
  2. Step 2: Convert to fraction form
    3,155.96/4,355.42 = 1,739.64/x
  3. Step 3: Cross multiply
    3,155.96x = 4,355.42 × 1,739.64
  4. Step 4: Simplify right side
    3,155.96x = 7,576,862.85
  5. Step 5: Solve for x
    x = 7,576,862.85/3,155.96
  6. Step 6: Final answer
    x = 2,400.81

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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.