Home / 2,936.16-4,405.32-2,115.36

Finding the Fourth Proportional to 2,936.16, 4,405.32 and 2,115.36

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Solution

The fourth proportional to 2,936.16, 4,405.32 and 2,115.36 is: 3,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.16 : 4,405.32 = 2,115.36 : x
  2. Step 2: Convert to fraction form
    2,936.16/4,405.32 = 2,115.36/x
  3. Step 3: Cross multiply
    2,936.16x = 4,405.32 × 2,115.36
  4. Step 4: Simplify right side
    2,936.16x = 9,318,837.72
  5. Step 5: Solve for x
    x = 9,318,837.72/2,936.16
  6. Step 6: Final answer
    x = 3,173.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.