Home / 3,015.83-4,161.05-1,739.40

Finding the Fourth Proportional to 3,015.83, 4,161.05 and 1,739.40

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Solution

The fourth proportional to 3,015.83, 4,161.05 and 1,739.40 is: 2,399.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.83 : 4,161.05 = 1,739.40 : x
  2. Step 2: Convert to fraction form
    3,015.83/4,161.05 = 1,739.40/x
  3. Step 3: Cross multiply
    3,015.83x = 4,161.05 × 1,739.40
  4. Step 4: Simplify right side
    3,015.83x = 7,237,709.56
  5. Step 5: Solve for x
    x = 7,237,709.56/3,015.83
  6. Step 6: Final answer
    x = 2,399.91

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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.