Home / 1,692.20-2,335.22-1,028.93

Finding the Fourth Proportional to 1,692.20, 2,335.22 and 1,028.93

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Solution

The fourth proportional to 1,692.20, 2,335.22 and 1,028.93 is: 1,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.20 : 2,335.22 = 1,028.93 : x
  2. Step 2: Convert to fraction form
    1,692.20/2,335.22 = 1,028.93/x
  3. Step 3: Cross multiply
    1,692.20x = 2,335.22 × 1,028.93
  4. Step 4: Simplify right side
    1,692.20x = 2,402,761.09
  5. Step 5: Solve for x
    x = 2,402,761.09/1,692.20
  6. Step 6: Final answer
    x = 1,419.91

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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.