Home / 3,990,523-5,506,922.36-2,179,687

Finding the Fourth Proportional to 3,990,523, 5,506,922.36 and 2,179,687

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Solution

The fourth proportional to 3,990,523, 5,506,922.36 and 2,179,687 is: 3,007,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,523 : 5,506,922.36 = 2,179,687 : x
  2. Step 2: Convert to fraction form
    3,990,523/5,506,922.36 = 2,179,687/x
  3. Step 3: Cross multiply
    3,990,523x = 5,506,922.36 × 2,179,687
  4. Step 4: Simplify right side
    3,990,523x = 12,003,367,078,101.32
  5. Step 5: Solve for x
    x = 12,003,367,078,101.32/3,990,523
  6. Step 6: Final answer
    x = 3,007,968.40

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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.