Home / 2,102,971.36-2,902,100.40-1,185,234.06

Finding the Fourth Proportional to 2,102,971.36, 2,902,100.40 and 1,185,234.06

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Solution

The fourth proportional to 2,102,971.36, 2,902,100.40 and 1,185,234.06 is: 1,635,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,971.36 : 2,902,100.40 = 1,185,234.06 : x
  2. Step 2: Convert to fraction form
    2,102,971.36/2,902,100.40 = 1,185,234.06/x
  3. Step 3: Cross multiply
    2,102,971.36x = 2,902,100.40 × 1,185,234.06
  4. Step 4: Simplify right side
    2,102,971.36x = 3,439,668,239,619.62
  5. Step 5: Solve for x
    x = 3,439,668,239,619.62/2,102,971.36
  6. Step 6: Final answer
    x = 1,635,622.96

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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.