Home / 2,160.40-3,241.04-1,236.40

Finding the Fourth Proportional to 2,160.40, 3,241.04 and 1,236.40

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Solution

The fourth proportional to 2,160.40, 3,241.04 and 1,236.40 is: 1,854.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.40 : 3,241.04 = 1,236.40 : x
  2. Step 2: Convert to fraction form
    2,160.40/3,241.04 = 1,236.40/x
  3. Step 3: Cross multiply
    2,160.40x = 3,241.04 × 1,236.40
  4. Step 4: Simplify right side
    2,160.40x = 4,007,221.86
  5. Step 5: Solve for x
    x = 4,007,221.86/2,160.40
  6. Step 6: Final answer
    x = 1,854.85

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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.