Home / 2,612.49-3,911.85-1,833.45

Finding the Fourth Proportional to 2,612.49, 3,911.85 and 1,833.45

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Solution

The fourth proportional to 2,612.49, 3,911.85 and 1,833.45 is: 2,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.49 : 3,911.85 = 1,833.45 : x
  2. Step 2: Convert to fraction form
    2,612.49/3,911.85 = 1,833.45/x
  3. Step 3: Cross multiply
    2,612.49x = 3,911.85 × 1,833.45
  4. Step 4: Simplify right side
    2,612.49x = 7,172,181.38
  5. Step 5: Solve for x
    x = 7,172,181.38/2,612.49
  6. Step 6: Final answer
    x = 2,745.34

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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.