Home / 3,609.09-5,411.44-1,415.19

Finding the Fourth Proportional to 3,609.09, 5,411.44 and 1,415.19

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Solution

The fourth proportional to 3,609.09, 5,411.44 and 1,415.19 is: 2,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.09 : 5,411.44 = 1,415.19 : x
  2. Step 2: Convert to fraction form
    3,609.09/5,411.44 = 1,415.19/x
  3. Step 3: Cross multiply
    3,609.09x = 5,411.44 × 1,415.19
  4. Step 4: Simplify right side
    3,609.09x = 7,658,215.77
  5. Step 5: Solve for x
    x = 7,658,215.77/3,609.09
  6. Step 6: Final answer
    x = 2,121.92

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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.