Home / 5,155.28-7,732.16-1,692.56

Finding the Fourth Proportional to 5,155.28, 7,732.16 and 1,692.56

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Solution

The fourth proportional to 5,155.28, 7,732.16 and 1,692.56 is: 2,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.28 : 7,732.16 = 1,692.56 : x
  2. Step 2: Convert to fraction form
    5,155.28/7,732.16 = 1,692.56/x
  3. Step 3: Cross multiply
    5,155.28x = 7,732.16 × 1,692.56
  4. Step 4: Simplify right side
    5,155.28x = 13,087,144.73
  5. Step 5: Solve for x
    x = 13,087,144.73/5,155.28
  6. Step 6: Final answer
    x = 2,538.59

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1.5x scale

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.