Home / 2,920.05-4,028.94-2,792.48

Finding the Fourth Proportional to 2,920.05, 4,028.94 and 2,792.48

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Solution

The fourth proportional to 2,920.05, 4,028.94 and 2,792.48 is: 3,852.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.05 : 4,028.94 = 2,792.48 : x
  2. Step 2: Convert to fraction form
    2,920.05/4,028.94 = 2,792.48/x
  3. Step 3: Cross multiply
    2,920.05x = 4,028.94 × 2,792.48
  4. Step 4: Simplify right side
    2,920.05x = 11,250,714.23
  5. Step 5: Solve for x
    x = 11,250,714.23/2,920.05
  6. Step 6: Final answer
    x = 3,852.92

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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.