Home / 2,889,578.60-3,990,298.92-2,163,165.20

Finding the Fourth Proportional to 2,889,578.60, 3,990,298.92 and 2,163,165.20

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Solution

The fourth proportional to 2,889,578.60, 3,990,298.92 and 2,163,165.20 is: 2,987,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889,578.60 : 3,990,298.92 = 2,163,165.20 : x
  2. Step 2: Convert to fraction form
    2,889,578.60/3,990,298.92 = 2,163,165.20/x
  3. Step 3: Cross multiply
    2,889,578.60x = 3,990,298.92 × 2,163,165.20
  4. Step 4: Simplify right side
    2,889,578.60x = 8,631,675,761,341.59
  5. Step 5: Solve for x
    x = 8,631,675,761,341.59/2,889,578.60
  6. Step 6: Final answer
    x = 2,987,174.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.