Home / 3,131,385.70-4,321,239.15-1,842,309.22

Finding the Fourth Proportional to 3,131,385.70, 4,321,239.15 and 1,842,309.22

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Solution

The fourth proportional to 3,131,385.70, 4,321,239.15 and 1,842,309.22 is: 2,542,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,385.70 : 4,321,239.15 = 1,842,309.22 : x
  2. Step 2: Convert to fraction form
    3,131,385.70/4,321,239.15 = 1,842,309.22/x
  3. Step 3: Cross multiply
    3,131,385.70x = 4,321,239.15 × 1,842,309.22
  4. Step 4: Simplify right side
    3,131,385.70x = 7,961,058,727,869.96
  5. Step 5: Solve for x
    x = 7,961,058,727,869.96/3,131,385.70
  6. Step 6: Final answer
    x = 2,542,343.71

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1.5x scale

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.