Home / 3,819.83-5,271.85-2,328.21

Finding the Fourth Proportional to 3,819.83, 5,271.85 and 2,328.21

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Solution

The fourth proportional to 3,819.83, 5,271.85 and 2,328.21 is: 3,213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.83 : 5,271.85 = 2,328.21 : x
  2. Step 2: Convert to fraction form
    3,819.83/5,271.85 = 2,328.21/x
  3. Step 3: Cross multiply
    3,819.83x = 5,271.85 × 2,328.21
  4. Step 4: Simplify right side
    3,819.83x = 12,273,987.84
  5. Step 5: Solve for x
    x = 12,273,987.84/3,819.83
  6. Step 6: Final answer
    x = 3,213.23

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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.