Home / 3,608.85-4,977.93-2,768.28

Finding the Fourth Proportional to 3,608.85, 4,977.93 and 2,768.28

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Solution

The fourth proportional to 3,608.85, 4,977.93 and 2,768.28 is: 3,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.85 : 4,977.93 = 2,768.28 : x
  2. Step 2: Convert to fraction form
    3,608.85/4,977.93 = 2,768.28/x
  3. Step 3: Cross multiply
    3,608.85x = 4,977.93 × 2,768.28
  4. Step 4: Simplify right side
    3,608.85x = 13,780,304.06
  5. Step 5: Solve for x
    x = 13,780,304.06/3,608.85
  6. Step 6: Final answer
    x = 3,818.48

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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.