Home / 2,121,881.79-2,928,234.26-1,155,039.87

Finding the Fourth Proportional to 2,121,881.79, 2,928,234.26 and 1,155,039.87

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Solution

The fourth proportional to 2,121,881.79, 2,928,234.26 and 1,155,039.87 is: 1,593,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,881.79 : 2,928,234.26 = 1,155,039.87 : x
  2. Step 2: Convert to fraction form
    2,121,881.79/2,928,234.26 = 1,155,039.87/x
  3. Step 3: Cross multiply
    2,121,881.79x = 2,928,234.26 × 1,155,039.87
  4. Step 4: Simplify right side
    2,121,881.79x = 3,382,227,313,224.75
  5. Step 5: Solve for x
    x = 3,382,227,313,224.75/2,121,881.79
  6. Step 6: Final answer
    x = 1,593,975.37

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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.