Home / 3,761,385.86-5,190,772.82-2,129,749.61

Finding the Fourth Proportional to 3,761,385.86, 5,190,772.82 and 2,129,749.61

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Solution

The fourth proportional to 3,761,385.86, 5,190,772.82 and 2,129,749.61 is: 2,939,088.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761,385.86 : 5,190,772.82 = 2,129,749.61 : x
  2. Step 2: Convert to fraction form
    3,761,385.86/5,190,772.82 = 2,129,749.61/x
  3. Step 3: Cross multiply
    3,761,385.86x = 5,190,772.82 × 2,129,749.61
  4. Step 4: Simplify right side
    3,761,385.86x = 11,055,046,352,390.99
  5. Step 5: Solve for x
    x = 11,055,046,352,390.99/3,761,385.86
  6. Step 6: Final answer
    x = 2,939,088.61

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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.