Home / 2,105,823.41-2,906,036.75-1,188,247.31

Finding the Fourth Proportional to 2,105,823.41, 2,906,036.75 and 1,188,247.31

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Solution

The fourth proportional to 2,105,823.41, 2,906,036.75 and 1,188,247.31 is: 1,639,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,823.41 : 2,906,036.75 = 1,188,247.31 : x
  2. Step 2: Convert to fraction form
    2,105,823.41/2,906,036.75 = 1,188,247.31/x
  3. Step 3: Cross multiply
    2,105,823.41x = 2,906,036.75 × 1,188,247.31
  4. Step 4: Simplify right side
    2,105,823.41x = 3,453,090,339,389.08
  5. Step 5: Solve for x
    x = 3,453,090,339,389.08/2,105,823.41
  6. Step 6: Final answer
    x = 1,639,781.54

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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.