Home / 2,783,648.80-3,843,285.60-2,137,915

Finding the Fourth Proportional to 2,783,648.80, 3,843,285.60 and 2,137,915

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Solution

The fourth proportional to 2,783,648.80, 3,843,285.60 and 2,137,915 is: 2,951,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783,648.80 : 3,843,285.60 = 2,137,915 : x
  2. Step 2: Convert to fraction form
    2,783,648.80/3,843,285.60 = 2,137,915/x
  3. Step 3: Cross multiply
    2,783,648.80x = 3,843,285.60 × 2,137,915
  4. Step 4: Simplify right side
    2,783,648.80x = 8,216,617,933,524
  5. Step 5: Solve for x
    x = 8,216,617,933,524/2,783,648.80
  6. Step 6: Final answer
    x = 2,951,743.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.