Home / 2,810,786.85-3,878,887.05-1,521,627.21

Finding the Fourth Proportional to 2,810,786.85, 3,878,887.05 and 1,521,627.21

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Solution

The fourth proportional to 2,810,786.85, 3,878,887.05 and 1,521,627.21 is: 2,099,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,786.85 : 3,878,887.05 = 1,521,627.21 : x
  2. Step 2: Convert to fraction form
    2,810,786.85/3,878,887.05 = 1,521,627.21/x
  3. Step 3: Cross multiply
    2,810,786.85x = 3,878,887.05 × 1,521,627.21
  4. Step 4: Simplify right side
    2,810,786.85x = 5,902,220,079,796.63
  5. Step 5: Solve for x
    x = 5,902,220,079,796.63/2,810,786.85
  6. Step 6: Final answer
    x = 2,099,846.20

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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.