Home / 3,072.22-4,609.96-1,340.98

Finding the Fourth Proportional to 3,072.22, 4,609.96 and 1,340.98

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Solution

The fourth proportional to 3,072.22, 4,609.96 and 1,340.98 is: 2,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.22 : 4,609.96 = 1,340.98 : x
  2. Step 2: Convert to fraction form
    3,072.22/4,609.96 = 1,340.98/x
  3. Step 3: Cross multiply
    3,072.22x = 4,609.96 × 1,340.98
  4. Step 4: Simplify right side
    3,072.22x = 6,181,864.16
  5. Step 5: Solve for x
    x = 6,181,864.16/3,072.22
  6. Step 6: Final answer
    x = 2,012.18

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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.