Home / 2,130,906.81-3,196,338.31-1,231,776.43

Finding the Fourth Proportional to 2,130,906.81, 3,196,338.31 and 1,231,776.43

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Solution

The fourth proportional to 2,130,906.81, 3,196,338.31 and 1,231,776.43 is: 1,847,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,906.81 : 3,196,338.31 = 1,231,776.43 : x
  2. Step 2: Convert to fraction form
    2,130,906.81/3,196,338.31 = 1,231,776.43/x
  3. Step 3: Cross multiply
    2,130,906.81x = 3,196,338.31 × 1,231,776.43
  4. Step 4: Simplify right side
    2,130,906.81x = 3,937,174,192,564.03
  5. Step 5: Solve for x
    x = 3,937,174,192,564.03/2,130,906.81
  6. Step 6: Final answer
    x = 1,847,651.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.