Home / 2,222.36-3,066.90-1,338.20

Finding the Fourth Proportional to 2,222.36, 3,066.90 and 1,338.20

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Solution

The fourth proportional to 2,222.36, 3,066.90 and 1,338.20 is: 1,846.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.36 : 3,066.90 = 1,338.20 : x
  2. Step 2: Convert to fraction form
    2,222.36/3,066.90 = 1,338.20/x
  3. Step 3: Cross multiply
    2,222.36x = 3,066.90 × 1,338.20
  4. Step 4: Simplify right side
    2,222.36x = 4,104,125.58
  5. Step 5: Solve for x
    x = 4,104,125.58/2,222.36
  6. Step 6: Final answer
    x = 1,846.74

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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.