Home / 2,105,078.56-2,904,889.14-1,187,252.85

Finding the Fourth Proportional to 2,105,078.56, 2,904,889.14 and 1,187,252.85

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Solution

The fourth proportional to 2,105,078.56, 2,904,889.14 and 1,187,252.85 is: 1,638,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,078.56 : 2,904,889.14 = 1,187,252.85 : x
  2. Step 2: Convert to fraction form
    2,105,078.56/2,904,889.14 = 1,187,252.85/x
  3. Step 3: Cross multiply
    2,105,078.56x = 2,904,889.14 × 1,187,252.85
  4. Step 4: Simplify right side
    2,105,078.56x = 3,448,837,899,505.72
  5. Step 5: Solve for x
    x = 3,448,837,899,505.72/2,105,078.56
  6. Step 6: Final answer
    x = 1,638,341.66

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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.