Home / 3,771.83-5,205.16-2,280.74

Finding the Fourth Proportional to 3,771.83, 5,205.16 and 2,280.74

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Solution

The fourth proportional to 3,771.83, 5,205.16 and 2,280.74 is: 3,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.83 : 5,205.16 = 2,280.74 : x
  2. Step 2: Convert to fraction form
    3,771.83/5,205.16 = 2,280.74/x
  3. Step 3: Cross multiply
    3,771.83x = 5,205.16 × 2,280.74
  4. Step 4: Simplify right side
    3,771.83x = 11,871,609.89
  5. Step 5: Solve for x
    x = 11,871,609.89/3,771.83
  6. Step 6: Final answer
    x = 3,147.44

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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.