Home / 3,612.09-5,415.94-1,418.19

Finding the Fourth Proportional to 3,612.09, 5,415.94 and 1,418.19

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Solution

The fourth proportional to 3,612.09, 5,415.94 and 1,418.19 is: 2,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.09 : 5,415.94 = 1,418.19 : x
  2. Step 2: Convert to fraction form
    3,612.09/5,415.94 = 1,418.19/x
  3. Step 3: Cross multiply
    3,612.09x = 5,415.94 × 1,418.19
  4. Step 4: Simplify right side
    3,612.09x = 7,680,831.95
  5. Step 5: Solve for x
    x = 7,680,831.95/3,612.09
  6. Step 6: Final answer
    x = 2,126.42

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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.