Home / 2,145,489.83-2,961,032.93-1,286,021.51

Finding the Fourth Proportional to 2,145,489.83, 2,961,032.93 and 1,286,021.51

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Solution

The fourth proportional to 2,145,489.83, 2,961,032.93 and 1,286,021.51 is: 1,774,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,489.83 : 2,961,032.93 = 1,286,021.51 : x
  2. Step 2: Convert to fraction form
    2,145,489.83/2,961,032.93 = 1,286,021.51/x
  3. Step 3: Cross multiply
    2,145,489.83x = 2,961,032.93 × 1,286,021.51
  4. Step 4: Simplify right side
    2,145,489.83x = 3,807,952,034,489.51
  5. Step 5: Solve for x
    x = 3,807,952,034,489.51/2,145,489.83
  6. Step 6: Final answer
    x = 1,774,863.71

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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.