Home / 3,155.36-4,354.25-1,739.05

Finding the Fourth Proportional to 3,155.36, 4,354.25 and 1,739.05

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Solution

The fourth proportional to 3,155.36, 4,354.25 and 1,739.05 is: 2,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.36 : 4,354.25 = 1,739.05 : x
  2. Step 2: Convert to fraction form
    3,155.36/4,354.25 = 1,739.05/x
  3. Step 3: Cross multiply
    3,155.36x = 4,354.25 × 1,739.05
  4. Step 4: Simplify right side
    3,155.36x = 7,572,238.88
  5. Step 5: Solve for x
    x = 7,572,238.88/3,155.36
  6. Step 6: Final answer
    x = 2,399.81

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1.5x scale

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.