Home / 3,800.63-5,245.04-2,122.07

Finding the Fourth Proportional to 3,800.63, 5,245.04 and 2,122.07

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Solution

The fourth proportional to 3,800.63, 5,245.04 and 2,122.07 is: 2,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.63 : 5,245.04 = 2,122.07 : x
  2. Step 2: Convert to fraction form
    3,800.63/5,245.04 = 2,122.07/x
  3. Step 3: Cross multiply
    3,800.63x = 5,245.04 × 2,122.07
  4. Step 4: Simplify right side
    3,800.63x = 11,130,321.11
  5. Step 5: Solve for x
    x = 11,130,321.11/3,800.63
  6. Step 6: Final answer
    x = 2,928.54

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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.