Home / 2,891,379.22-3,990,126.78-1,602,241.12

Finding the Fourth Proportional to 2,891,379.22, 3,990,126.78 and 1,602,241.12

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Solution

The fourth proportional to 2,891,379.22, 3,990,126.78 and 1,602,241.12 is: 2,211,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,379.22 : 3,990,126.78 = 1,602,241.12 : x
  2. Step 2: Convert to fraction form
    2,891,379.22/3,990,126.78 = 1,602,241.12/x
  3. Step 3: Cross multiply
    2,891,379.22x = 3,990,126.78 × 1,602,241.12
  4. Step 4: Simplify right side
    2,891,379.22x = 6,393,145,200,929.19
  5. Step 5: Solve for x
    x = 6,393,145,200,929.19/2,891,379.22
  6. Step 6: Final answer
    x = 2,211,105.74

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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.