Home / 3,759,926.23-5,188,713.78-2,128,648.40

Finding the Fourth Proportional to 3,759,926.23, 5,188,713.78 and 2,128,648.40

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Solution

The fourth proportional to 3,759,926.23, 5,188,713.78 and 2,128,648.40 is: 2,937,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759,926.23 : 5,188,713.78 = 2,128,648.40 : x
  2. Step 2: Convert to fraction form
    3,759,926.23/5,188,713.78 = 2,128,648.40/x
  3. Step 3: Cross multiply
    3,759,926.23x = 5,188,713.78 × 2,128,648.40
  4. Step 4: Simplify right side
    3,759,926.23x = 11,044,947,259,911.38
  5. Step 5: Solve for x
    x = 11,044,947,259,911.38/3,759,926.23
  6. Step 6: Final answer
    x = 2,937,543.61

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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.