Home / 3,830,778.28-5,286,376.74-2,111,858.92

Finding the Fourth Proportional to 3,830,778.28, 5,286,376.74 and 2,111,858.92

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Solution

The fourth proportional to 3,830,778.28, 5,286,376.74 and 2,111,858.92 is: 2,914,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830,778.28 : 5,286,376.74 = 2,111,858.92 : x
  2. Step 2: Convert to fraction form
    3,830,778.28/5,286,376.74 = 2,111,858.92/x
  3. Step 3: Cross multiply
    3,830,778.28x = 5,286,376.74 × 2,111,858.92
  4. Step 4: Simplify right side
    3,830,778.28x = 11,164,081,872,849.52
  5. Step 5: Solve for x
    x = 11,164,081,872,849.52/3,830,778.28
  6. Step 6: Final answer
    x = 2,914,311.68

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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.