Home / 2,890,393.80-3,988,988.38-1,601,638.44

Finding the Fourth Proportional to 2,890,393.80, 3,988,988.38 and 1,601,638.44

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Solution

The fourth proportional to 2,890,393.80, 3,988,988.38 and 1,601,638.44 is: 2,210,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,393.80 : 3,988,988.38 = 1,601,638.44 : x
  2. Step 2: Convert to fraction form
    2,890,393.80/3,988,988.38 = 1,601,638.44/x
  3. Step 3: Cross multiply
    2,890,393.80x = 3,988,988.38 × 1,601,638.44
  4. Step 4: Simplify right side
    2,890,393.80x = 6,388,917,106,176.39
  5. Step 5: Solve for x
    x = 6,388,917,106,176.39/2,890,393.80
  6. Step 6: Final answer
    x = 2,210,396.77

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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.