Home / 3,896,870.87-5,377,512.65-2,130,736.79

Finding the Fourth Proportional to 3,896,870.87, 5,377,512.65 and 2,130,736.79

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Solution

The fourth proportional to 3,896,870.87, 5,377,512.65 and 2,130,736.79 is: 2,940,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896,870.87 : 5,377,512.65 = 2,130,736.79 : x
  2. Step 2: Convert to fraction form
    3,896,870.87/5,377,512.65 = 2,130,736.79/x
  3. Step 3: Cross multiply
    3,896,870.87x = 5,377,512.65 × 2,130,736.79
  4. Step 4: Simplify right side
    3,896,870.87x = 11,458,064,004,504.15
  5. Step 5: Solve for x
    x = 11,458,064,004,504.15/3,896,870.87
  6. Step 6: Final answer
    x = 2,940,324.28

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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.