Home / 2,821,221.95-3,894,478.03-1,904,692.47

Finding the Fourth Proportional to 2,821,221.95, 3,894,478.03 and 1,904,692.47

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Solution

The fourth proportional to 2,821,221.95, 3,894,478.03 and 1,904,692.47 is: 2,629,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821,221.95 : 3,894,478.03 = 1,904,692.47 : x
  2. Step 2: Convert to fraction form
    2,821,221.95/3,894,478.03 = 1,904,692.47/x
  3. Step 3: Cross multiply
    2,821,221.95x = 3,894,478.03 × 1,904,692.47
  4. Step 4: Simplify right side
    2,821,221.95x = 7,417,782,977,290.55
  5. Step 5: Solve for x
    x = 7,417,782,977,290.55/2,821,221.95
  6. Step 6: Final answer
    x = 2,629,280.19

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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.