Home / 2,889,578.35-3,990,298.58-2,163,164.91

Finding the Fourth Proportional to 2,889,578.35, 3,990,298.58 and 2,163,164.91

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Solution

The fourth proportional to 2,889,578.35, 3,990,298.58 and 2,163,164.91 is: 2,987,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889,578.35 : 3,990,298.58 = 2,163,164.91 : x
  2. Step 2: Convert to fraction form
    2,889,578.35/3,990,298.58 = 2,163,164.91/x
  3. Step 3: Cross multiply
    2,889,578.35x = 3,990,298.58 × 2,163,164.91
  4. Step 4: Simplify right side
    2,889,578.35x = 8,631,673,868,678.83
  5. Step 5: Solve for x
    x = 8,631,673,868,678.83/2,889,578.35
  6. Step 6: Final answer
    x = 2,987,174.19

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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.