Home / 2,334.40-3,221.45-1,286.46

Finding the Fourth Proportional to 2,334.40, 3,221.45 and 1,286.46

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Solution

The fourth proportional to 2,334.40, 3,221.45 and 1,286.46 is: 1,775.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.40 : 3,221.45 = 1,286.46 : x
  2. Step 2: Convert to fraction form
    2,334.40/3,221.45 = 1,286.46/x
  3. Step 3: Cross multiply
    2,334.40x = 3,221.45 × 1,286.46
  4. Step 4: Simplify right side
    2,334.40x = 4,144,266.57
  5. Step 5: Solve for x
    x = 4,144,266.57/2,334.40
  6. Step 6: Final answer
    x = 1,775.31

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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.