Home / 2,922.67-4,032.78-2,774.92

Finding the Fourth Proportional to 2,922.67, 4,032.78 and 2,774.92

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Solution

The fourth proportional to 2,922.67, 4,032.78 and 2,774.92 is: 3,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.67 : 4,032.78 = 2,774.92 : x
  2. Step 2: Convert to fraction form
    2,922.67/4,032.78 = 2,774.92/x
  3. Step 3: Cross multiply
    2,922.67x = 4,032.78 × 2,774.92
  4. Step 4: Simplify right side
    2,922.67x = 11,190,641.88
  5. Step 5: Solve for x
    x = 11,190,641.88/2,922.67
  6. Step 6: Final answer
    x = 3,828.91

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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.