Home / 2,187,021.29-3,018,091.25-1,220,151.73

Finding the Fourth Proportional to 2,187,021.29, 3,018,091.25 and 1,220,151.73

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Solution

The fourth proportional to 2,187,021.29, 3,018,091.25 and 1,220,151.73 is: 1,683,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,021.29 : 3,018,091.25 = 1,220,151.73 : x
  2. Step 2: Convert to fraction form
    2,187,021.29/3,018,091.25 = 1,220,151.73/x
  3. Step 3: Cross multiply
    2,187,021.29x = 3,018,091.25 × 1,220,151.73
  4. Step 4: Simplify right side
    2,187,021.29x = 3,682,529,259,985.36
  5. Step 5: Solve for x
    x = 3,682,529,259,985.36/2,187,021.29
  6. Step 6: Final answer
    x = 1,683,810.43

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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.