Home / 2,774.09-3,822.99-1,986.77

Finding the Fourth Proportional to 2,774.09, 3,822.99 and 1,986.77

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Solution

The fourth proportional to 2,774.09, 3,822.99 and 1,986.77 is: 2,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.09 : 3,822.99 = 1,986.77 : x
  2. Step 2: Convert to fraction form
    2,774.09/3,822.99 = 1,986.77/x
  3. Step 3: Cross multiply
    2,774.09x = 3,822.99 × 1,986.77
  4. Step 4: Simplify right side
    2,774.09x = 7,595,403.95
  5. Step 5: Solve for x
    x = 7,595,403.95/2,774.09
  6. Step 6: Final answer
    x = 2,737.98

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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.