Home / 3,778.07-5,213.74-2,076.57

Finding the Fourth Proportional to 3,778.07, 5,213.74 and 2,076.57

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Solution

The fourth proportional to 3,778.07, 5,213.74 and 2,076.57 is: 2,865.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.07 : 5,213.74 = 2,076.57 : x
  2. Step 2: Convert to fraction form
    3,778.07/5,213.74 = 2,076.57/x
  3. Step 3: Cross multiply
    3,778.07x = 5,213.74 × 2,076.57
  4. Step 4: Simplify right side
    3,778.07x = 10,826,664.81
  5. Step 5: Solve for x
    x = 10,826,664.81/3,778.07
  6. Step 6: Final answer
    x = 2,865.66

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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.