Home / 2,191,806.40-3,287,709.60-2,107,825.60

Finding the Fourth Proportional to 2,191,806.40, 3,287,709.60 and 2,107,825.60

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Solution

The fourth proportional to 2,191,806.40, 3,287,709.60 and 2,107,825.60 is: 3,161,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,806.40 : 3,287,709.60 = 2,107,825.60 : x
  2. Step 2: Convert to fraction form
    2,191,806.40/3,287,709.60 = 2,107,825.60/x
  3. Step 3: Cross multiply
    2,191,806.40x = 3,287,709.60 × 2,107,825.60
  4. Step 4: Simplify right side
    2,191,806.40x = 6,929,918,460,245.76
  5. Step 5: Solve for x
    x = 6,929,918,460,245.76/2,191,806.40
  6. Step 6: Final answer
    x = 3,161,738.40

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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.