Home / 3,785,515.74-5,224,309.83-2,153,991.78

Finding the Fourth Proportional to 3,785,515.74, 5,224,309.83 and 2,153,991.78

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Solution

The fourth proportional to 3,785,515.74, 5,224,309.83 and 2,153,991.78 is: 2,972,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785,515.74 : 5,224,309.83 = 2,153,991.78 : x
  2. Step 2: Convert to fraction form
    3,785,515.74/5,224,309.83 = 2,153,991.78/x
  3. Step 3: Cross multiply
    3,785,515.74x = 5,224,309.83 × 2,153,991.78
  4. Step 4: Simplify right side
    3,785,515.74x = 11,253,120,429,993.20
  5. Step 5: Solve for x
    x = 11,253,120,429,993.20/3,785,515.74
  6. Step 6: Final answer
    x = 2,972,678.28

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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.