Home / 3,877.19-5,806.49-2,119.55

Finding the Fourth Proportional to 3,877.19, 5,806.49 and 2,119.55

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Solution

The fourth proportional to 3,877.19, 5,806.49 and 2,119.55 is: 3,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.19 : 5,806.49 = 2,119.55 : x
  2. Step 2: Convert to fraction form
    3,877.19/5,806.49 = 2,119.55/x
  3. Step 3: Cross multiply
    3,877.19x = 5,806.49 × 2,119.55
  4. Step 4: Simplify right side
    3,877.19x = 12,307,145.88
  5. Step 5: Solve for x
    x = 12,307,145.88/3,877.19
  6. Step 6: Final answer
    x = 3,174.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.