Home / 2,120,833.51-3,177,236.33-1,253,672.29

Finding the Fourth Proportional to 2,120,833.51, 3,177,236.33 and 1,253,672.29

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Solution

The fourth proportional to 2,120,833.51, 3,177,236.33 and 1,253,672.29 is: 1,878,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,833.51 : 3,177,236.33 = 1,253,672.29 : x
  2. Step 2: Convert to fraction form
    2,120,833.51/3,177,236.33 = 1,253,672.29/x
  3. Step 3: Cross multiply
    2,120,833.51x = 3,177,236.33 × 1,253,672.29
  4. Step 4: Simplify right side
    2,120,833.51x = 3,983,213,129,816.11
  5. Step 5: Solve for x
    x = 3,983,213,129,816.11/2,120,833.51
  6. Step 6: Final answer
    x = 1,878,135.70

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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.