Home / 2,086,138.80-3,126,875.40-1,188,010.80

Finding the Fourth Proportional to 2,086,138.80, 3,126,875.40 and 1,188,010.80

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Solution

The fourth proportional to 2,086,138.80, 3,126,875.40 and 1,188,010.80 is: 1,780,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,138.80 : 3,126,875.40 = 1,188,010.80 : x
  2. Step 2: Convert to fraction form
    2,086,138.80/3,126,875.40 = 1,188,010.80/x
  3. Step 3: Cross multiply
    2,086,138.80x = 3,126,875.40 × 1,188,010.80
  4. Step 4: Simplify right side
    2,086,138.80x = 3,714,761,745,454.32
  5. Step 5: Solve for x
    x = 3,714,761,745,454.32/2,086,138.80
  6. Step 6: Final answer
    x = 1,780,687.72

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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.