Home / 1,692.38-2,334.07-1,103.11

Finding the Fourth Proportional to 1,692.38, 2,334.07 and 1,103.11

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Solution

The fourth proportional to 1,692.38, 2,334.07 and 1,103.11 is: 1,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.38 : 2,334.07 = 1,103.11 : x
  2. Step 2: Convert to fraction form
    1,692.38/2,334.07 = 1,103.11/x
  3. Step 3: Cross multiply
    1,692.38x = 2,334.07 × 1,103.11
  4. Step 4: Simplify right side
    1,692.38x = 2,574,735.96
  5. Step 5: Solve for x
    x = 2,574,735.96/1,692.38
  6. Step 6: Final answer
    x = 1,521.37

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1.5x scale

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.