Home / 3,160.36-4,361.70-1,919.08

Finding the Fourth Proportional to 3,160.36, 4,361.70 and 1,919.08

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Solution

The fourth proportional to 3,160.36, 4,361.70 and 1,919.08 is: 2,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.36 : 4,361.70 = 1,919.08 : x
  2. Step 2: Convert to fraction form
    3,160.36/4,361.70 = 1,919.08/x
  3. Step 3: Cross multiply
    3,160.36x = 4,361.70 × 1,919.08
  4. Step 4: Simplify right side
    3,160.36x = 8,370,451.24
  5. Step 5: Solve for x
    x = 8,370,451.24/3,160.36
  6. Step 6: Final answer
    x = 2,648.58

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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.