Home / 2,590,833.86-3,889,618.43-1,992,215.40

Finding the Fourth Proportional to 2,590,833.86, 3,889,618.43 and 1,992,215.40

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Solution

The fourth proportional to 2,590,833.86, 3,889,618.43 and 1,992,215.40 is: 2,990,912.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,833.86 : 3,889,618.43 = 1,992,215.40 : x
  2. Step 2: Convert to fraction form
    2,590,833.86/3,889,618.43 = 1,992,215.40/x
  3. Step 3: Cross multiply
    2,590,833.86x = 3,889,618.43 × 1,992,215.40
  4. Step 4: Simplify right side
    2,590,833.86x = 7,748,957,741,350.36
  5. Step 5: Solve for x
    x = 7,748,957,741,350.36/2,590,833.86
  6. Step 6: Final answer
    x = 2,990,912.64

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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.