Home / 2,191,805.40-3,287,708.10-2,107,824.60

Finding the Fourth Proportional to 2,191,805.40, 3,287,708.10 and 2,107,824.60

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Solution

The fourth proportional to 2,191,805.40, 3,287,708.10 and 2,107,824.60 is: 3,161,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,805.40 : 3,287,708.10 = 2,107,824.60 : x
  2. Step 2: Convert to fraction form
    2,191,805.40/3,287,708.10 = 2,107,824.60/x
  3. Step 3: Cross multiply
    2,191,805.40x = 3,287,708.10 × 2,107,824.60
  4. Step 4: Simplify right side
    2,191,805.40x = 6,929,912,010,799.26
  5. Step 5: Solve for x
    x = 6,929,912,010,799.26/2,191,805.40
  6. Step 6: Final answer
    x = 3,161,736.90

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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.