Home / 2,897,975.82-3,999,220.65-1,810,878.78

Finding the Fourth Proportional to 2,897,975.82, 3,999,220.65 and 1,810,878.78

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Solution

The fourth proportional to 2,897,975.82, 3,999,220.65 and 1,810,878.78 is: 2,499,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897,975.82 : 3,999,220.65 = 1,810,878.78 : x
  2. Step 2: Convert to fraction form
    2,897,975.82/3,999,220.65 = 1,810,878.78/x
  3. Step 3: Cross multiply
    2,897,975.82x = 3,999,220.65 × 1,810,878.78
  4. Step 4: Simplify right side
    2,897,975.82x = 7,242,103,811,622.81
  5. Step 5: Solve for x
    x = 7,242,103,811,622.81/2,897,975.82
  6. Step 6: Final answer
    x = 2,499,021.48

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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.