Home / 2,141.20-3,204.60-1,968.40

Finding the Fourth Proportional to 2,141.20, 3,204.60 and 1,968.40

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Solution

The fourth proportional to 2,141.20, 3,204.60 and 1,968.40 is: 2,945.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.20 : 3,204.60 = 1,968.40 : x
  2. Step 2: Convert to fraction form
    2,141.20/3,204.60 = 1,968.40/x
  3. Step 3: Cross multiply
    2,141.20x = 3,204.60 × 1,968.40
  4. Step 4: Simplify right side
    2,141.20x = 6,307,934.64
  5. Step 5: Solve for x
    x = 6,307,934.64/2,141.20
  6. Step 6: Final answer
    x = 2,945.98

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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.