Home / 5,140.82-7,692.28-3,635.39

Finding the Fourth Proportional to 5,140.82, 7,692.28 and 3,635.39

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Solution

The fourth proportional to 5,140.82, 7,692.28 and 3,635.39 is: 5,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.82 : 7,692.28 = 3,635.39 : x
  2. Step 2: Convert to fraction form
    5,140.82/7,692.28 = 3,635.39/x
  3. Step 3: Cross multiply
    5,140.82x = 7,692.28 × 3,635.39
  4. Step 4: Simplify right side
    5,140.82x = 27,964,390.24
  5. Step 5: Solve for x
    x = 27,964,390.24/5,140.82
  6. Step 6: Final answer
    x = 5,439.68

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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.