Home / 2,822.80-3,894.98-1,774.12

Finding the Fourth Proportional to 2,822.80, 3,894.98 and 1,774.12

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Solution

The fourth proportional to 2,822.80, 3,894.98 and 1,774.12 is: 2,447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.80 : 3,894.98 = 1,774.12 : x
  2. Step 2: Convert to fraction form
    2,822.80/3,894.98 = 1,774.12/x
  3. Step 3: Cross multiply
    2,822.80x = 3,894.98 × 1,774.12
  4. Step 4: Simplify right side
    2,822.80x = 6,910,161.92
  5. Step 5: Solve for x
    x = 6,910,161.92/2,822.80
  6. Step 6: Final answer
    x = 2,447.98

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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.