Home / 2,106,890.79-2,907,003.65-1,279,947.81

Finding the Fourth Proportional to 2,106,890.79, 2,907,003.65 and 1,279,947.81

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Solution

The fourth proportional to 2,106,890.79, 2,907,003.65 and 1,279,947.81 is: 1,766,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,890.79 : 2,907,003.65 = 1,279,947.81 : x
  2. Step 2: Convert to fraction form
    2,106,890.79/2,907,003.65 = 1,279,947.81/x
  3. Step 3: Cross multiply
    2,106,890.79x = 2,907,003.65 × 1,279,947.81
  4. Step 4: Simplify right side
    2,106,890.79x = 3,720,812,967,180.74
  5. Step 5: Solve for x
    x = 3,720,812,967,180.74/2,106,890.79
  6. Step 6: Final answer
    x = 1,766,020.81

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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.