Home / 2,865.36-3,954.24-1,872.39

Finding the Fourth Proportional to 2,865.36, 3,954.24 and 1,872.39

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Solution

The fourth proportional to 2,865.36, 3,954.24 and 1,872.39 is: 2,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.36 : 3,954.24 = 1,872.39 : x
  2. Step 2: Convert to fraction form
    2,865.36/3,954.24 = 1,872.39/x
  3. Step 3: Cross multiply
    2,865.36x = 3,954.24 × 1,872.39
  4. Step 4: Simplify right side
    2,865.36x = 7,403,879.43
  5. Step 5: Solve for x
    x = 7,403,879.43/2,865.36
  6. Step 6: Final answer
    x = 2,583.93

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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.