Home / 2,837.91-3,913.09-1,998.35

Finding the Fourth Proportional to 2,837.91, 3,913.09 and 1,998.35

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Solution

The fourth proportional to 2,837.91, 3,913.09 and 1,998.35 is: 2,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.91 : 3,913.09 = 1,998.35 : x
  2. Step 2: Convert to fraction form
    2,837.91/3,913.09 = 1,998.35/x
  3. Step 3: Cross multiply
    2,837.91x = 3,913.09 × 1,998.35
  4. Step 4: Simplify right side
    2,837.91x = 7,819,698.84
  5. Step 5: Solve for x
    x = 7,819,698.84/2,837.91
  6. Step 6: Final answer
    x = 2,755.44

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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.