Home / 2,126,821.66-3,187,382.80-1,990,618.94

Finding the Fourth Proportional to 2,126,821.66, 3,187,382.80 and 1,990,618.94

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Solution

The fourth proportional to 2,126,821.66, 3,187,382.80 and 1,990,618.94 is: 2,983,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,821.66 : 3,187,382.80 = 1,990,618.94 : x
  2. Step 2: Convert to fraction form
    2,126,821.66/3,187,382.80 = 1,990,618.94/x
  3. Step 3: Cross multiply
    2,126,821.66x = 3,187,382.80 × 1,990,618.94
  4. Step 4: Simplify right side
    2,126,821.66x = 6,344,864,570,710.23
  5. Step 5: Solve for x
    x = 6,344,864,570,710.23/2,126,821.66
  6. Step 6: Final answer
    x = 2,983,261.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.