Home / 3,072.19-4,609.05-1,429.90

Finding the Fourth Proportional to 3,072.19, 4,609.05 and 1,429.90

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Solution

The fourth proportional to 3,072.19, 4,609.05 and 1,429.90 is: 2,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.19 : 4,609.05 = 1,429.90 : x
  2. Step 2: Convert to fraction form
    3,072.19/4,609.05 = 1,429.90/x
  3. Step 3: Cross multiply
    3,072.19x = 4,609.05 × 1,429.90
  4. Step 4: Simplify right side
    3,072.19x = 6,590,480.60
  5. Step 5: Solve for x
    x = 6,590,480.60/3,072.19
  6. Step 6: Final answer
    x = 2,145.21

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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.