Home / 3,878,048.13-5,351,743.32-2,159,205.55

Finding the Fourth Proportional to 3,878,048.13, 5,351,743.32 and 2,159,205.55

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Solution

The fourth proportional to 3,878,048.13, 5,351,743.32 and 2,159,205.55 is: 2,979,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,048.13 : 5,351,743.32 = 2,159,205.55 : x
  2. Step 2: Convert to fraction form
    3,878,048.13/5,351,743.32 = 2,159,205.55/x
  3. Step 3: Cross multiply
    3,878,048.13x = 5,351,743.32 × 2,159,205.55
  4. Step 4: Simplify right side
    3,878,048.13x = 11,555,513,878,719.43
  5. Step 5: Solve for x
    x = 11,555,513,878,719.43/3,878,048.13
  6. Step 6: Final answer
    x = 2,979,724.20

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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.