Home / 2,810,415.74-3,878,383.41-1,521,255.78

Finding the Fourth Proportional to 2,810,415.74, 3,878,383.41 and 1,521,255.78

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Solution

The fourth proportional to 2,810,415.74, 3,878,383.41 and 1,521,255.78 is: 2,099,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,415.74 : 3,878,383.41 = 1,521,255.78 : x
  2. Step 2: Convert to fraction form
    2,810,415.74/3,878,383.41 = 1,521,255.78/x
  3. Step 3: Cross multiply
    2,810,415.74x = 3,878,383.41 × 1,521,255.78
  4. Step 4: Simplify right side
    2,810,415.74x = 5,900,013,179,518.61
  5. Step 5: Solve for x
    x = 5,900,013,179,518.61/2,810,415.74
  6. Step 6: Final answer
    x = 2,099,338.22

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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.