Home / 1,692.21-2,333.37-1,455.90

Finding the Fourth Proportional to 1,692.21, 2,333.37 and 1,455.90

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Solution

The fourth proportional to 1,692.21, 2,333.37 and 1,455.90 is: 2,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.21 : 2,333.37 = 1,455.90 : x
  2. Step 2: Convert to fraction form
    1,692.21/2,333.37 = 1,455.90/x
  3. Step 3: Cross multiply
    1,692.21x = 2,333.37 × 1,455.90
  4. Step 4: Simplify right side
    1,692.21x = 3,397,153.38
  5. Step 5: Solve for x
    x = 3,397,153.38/1,692.21
  6. Step 6: Final answer
    x = 2,007.52

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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.