Home / 2,821,221.51-3,894,477.40-1,904,692.03

Finding the Fourth Proportional to 2,821,221.51, 3,894,477.40 and 1,904,692.03

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Solution

The fourth proportional to 2,821,221.51, 3,894,477.40 and 1,904,692.03 is: 2,629,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821,221.51 : 3,894,477.40 = 1,904,692.03 : x
  2. Step 2: Convert to fraction form
    2,821,221.51/3,894,477.40 = 1,904,692.03/x
  3. Step 3: Cross multiply
    2,821,221.51x = 3,894,477.40 × 1,904,692.03
  4. Step 4: Simplify right side
    2,821,221.51x = 7,417,780,057,439.79
  5. Step 5: Solve for x
    x = 7,417,780,057,439.79/2,821,221.51
  6. Step 6: Final answer
    x = 2,629,279.57

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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.