Home / 2,764.06-3,812.47-1,878.33

Finding the Fourth Proportional to 2,764.06, 3,812.47 and 1,878.33

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Solution

The fourth proportional to 2,764.06, 3,812.47 and 1,878.33 is: 2,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.06 : 3,812.47 = 1,878.33 : x
  2. Step 2: Convert to fraction form
    2,764.06/3,812.47 = 1,878.33/x
  3. Step 3: Cross multiply
    2,764.06x = 3,812.47 × 1,878.33
  4. Step 4: Simplify right side
    2,764.06x = 7,161,076.78
  5. Step 5: Solve for x
    x = 7,161,076.78/2,764.06
  6. Step 6: Final answer
    x = 2,590.78

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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.