Home / 2,835.48-3,913.32-2,172.09

Finding the Fourth Proportional to 2,835.48, 3,913.32 and 2,172.09

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Solution

The fourth proportional to 2,835.48, 3,913.32 and 2,172.09 is: 2,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.48 : 3,913.32 = 2,172.09 : x
  2. Step 2: Convert to fraction form
    2,835.48/3,913.32 = 2,172.09/x
  3. Step 3: Cross multiply
    2,835.48x = 3,913.32 × 2,172.09
  4. Step 4: Simplify right side
    2,835.48x = 8,500,083.24
  5. Step 5: Solve for x
    x = 8,500,083.24/2,835.48
  6. Step 6: Final answer
    x = 2,997.76

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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.