Home / 3,878,855.15-5,356,204.92-2,431,039.28

Finding the Fourth Proportional to 3,878,855.15, 5,356,204.92 and 2,431,039.28

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Solution

The fourth proportional to 3,878,855.15, 5,356,204.92 and 2,431,039.28 is: 3,356,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,855.15 : 5,356,204.92 = 2,431,039.28 : x
  2. Step 2: Convert to fraction form
    3,878,855.15/5,356,204.92 = 2,431,039.28/x
  3. Step 3: Cross multiply
    3,878,855.15x = 5,356,204.92 × 2,431,039.28
  4. Step 4: Simplify right side
    3,878,855.15x = 13,021,144,525,468.23
  5. Step 5: Solve for x
    x = 13,021,144,525,468.23/3,878,855.15
  6. Step 6: Final answer
    x = 3,356,955.61

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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.