Home / 2,837.95-3,913.05-1,998.79

Finding the Fourth Proportional to 2,837.95, 3,913.05 and 1,998.79

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Solution

The fourth proportional to 2,837.95, 3,913.05 and 1,998.79 is: 2,755.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.95 : 3,913.05 = 1,998.79 : x
  2. Step 2: Convert to fraction form
    2,837.95/3,913.05 = 1,998.79/x
  3. Step 3: Cross multiply
    2,837.95x = 3,913.05 × 1,998.79
  4. Step 4: Simplify right side
    2,837.95x = 7,821,365.21
  5. Step 5: Solve for x
    x = 7,821,365.21/2,837.95
  6. Step 6: Final answer
    x = 2,755.99

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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.