Home / 2,021.21-3,030.84-1,199.28

Finding the Fourth Proportional to 2,021.21, 3,030.84 and 1,199.28

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Solution

The fourth proportional to 2,021.21, 3,030.84 and 1,199.28 is: 1,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.21 : 3,030.84 = 1,199.28 : x
  2. Step 2: Convert to fraction form
    2,021.21/3,030.84 = 1,199.28/x
  3. Step 3: Cross multiply
    2,021.21x = 3,030.84 × 1,199.28
  4. Step 4: Simplify right side
    2,021.21x = 3,634,825.80
  5. Step 5: Solve for x
    x = 3,634,825.80/2,021.21
  6. Step 6: Final answer
    x = 1,798.35

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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.