Home / 2,334.12-3,221.10-1,286.16

Finding the Fourth Proportional to 2,334.12, 3,221.10 and 1,286.16

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Solution

The fourth proportional to 2,334.12, 3,221.10 and 1,286.16 is: 1,774.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.12 : 3,221.10 = 1,286.16 : x
  2. Step 2: Convert to fraction form
    2,334.12/3,221.10 = 1,286.16/x
  3. Step 3: Cross multiply
    2,334.12x = 3,221.10 × 1,286.16
  4. Step 4: Simplify right side
    2,334.12x = 4,142,849.98
  5. Step 5: Solve for x
    x = 4,142,849.98/2,334.12
  6. Step 6: Final answer
    x = 1,774.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.