Home / 2,199.15-3,036.27-1,361.09

Finding the Fourth Proportional to 2,199.15, 3,036.27 and 1,361.09

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Solution

The fourth proportional to 2,199.15, 3,036.27 and 1,361.09 is: 1,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.15 : 3,036.27 = 1,361.09 : x
  2. Step 2: Convert to fraction form
    2,199.15/3,036.27 = 1,361.09/x
  3. Step 3: Cross multiply
    2,199.15x = 3,036.27 × 1,361.09
  4. Step 4: Simplify right side
    2,199.15x = 4,132,621.55
  5. Step 5: Solve for x
    x = 4,132,621.55/2,199.15
  6. Step 6: Final answer
    x = 1,879.19

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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.