Home / 1,334.69-2,003.22-1,188.21

Finding the Fourth Proportional to 1,334.69, 2,003.22 and 1,188.21

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Solution

The fourth proportional to 1,334.69, 2,003.22 and 1,188.21 is: 1,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.69 : 2,003.22 = 1,188.21 : x
  2. Step 2: Convert to fraction form
    1,334.69/2,003.22 = 1,188.21/x
  3. Step 3: Cross multiply
    1,334.69x = 2,003.22 × 1,188.21
  4. Step 4: Simplify right side
    1,334.69x = 2,380,246.04
  5. Step 5: Solve for x
    x = 2,380,246.04/1,334.69
  6. Step 6: Final answer
    x = 1,783.38

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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.