Home / 3,609.66-5,415.42-1,418.16

Finding the Fourth Proportional to 3,609.66, 5,415.42 and 1,418.16

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Solution

The fourth proportional to 3,609.66, 5,415.42 and 1,418.16 is: 2,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.66 : 5,415.42 = 1,418.16 : x
  2. Step 2: Convert to fraction form
    3,609.66/5,415.42 = 1,418.16/x
  3. Step 3: Cross multiply
    3,609.66x = 5,415.42 × 1,418.16
  4. Step 4: Simplify right side
    3,609.66x = 7,679,932.03
  5. Step 5: Solve for x
    x = 7,679,932.03/3,609.66
  6. Step 6: Final answer
    x = 2,127.61

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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.