Home / 1,692.38-2,336.13-1,103.06

Finding the Fourth Proportional to 1,692.38, 2,336.13 and 1,103.06

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Solution

The fourth proportional to 1,692.38, 2,336.13 and 1,103.06 is: 1,522.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.38 : 2,336.13 = 1,103.06 : x
  2. Step 2: Convert to fraction form
    1,692.38/2,336.13 = 1,103.06/x
  3. Step 3: Cross multiply
    1,692.38x = 2,336.13 × 1,103.06
  4. Step 4: Simplify right side
    1,692.38x = 2,576,891.56
  5. Step 5: Solve for x
    x = 2,576,891.56/1,692.38
  6. Step 6: Final answer
    x = 1,522.64

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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.