Home / 2,669.06-4,003.32-1,692.20

Finding the Fourth Proportional to 2,669.06, 4,003.32 and 1,692.20

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Solution

The fourth proportional to 2,669.06, 4,003.32 and 1,692.20 is: 2,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.06 : 4,003.32 = 1,692.20 : x
  2. Step 2: Convert to fraction form
    2,669.06/4,003.32 = 1,692.20/x
  3. Step 3: Cross multiply
    2,669.06x = 4,003.32 × 1,692.20
  4. Step 4: Simplify right side
    2,669.06x = 6,774,418.10
  5. Step 5: Solve for x
    x = 6,774,418.10/2,669.06
  6. Step 6: Final answer
    x = 2,538.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.