Home / 5,128.58-7,692.84-2,935.76

Finding the Fourth Proportional to 5,128.58, 7,692.84 and 2,935.76

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Solution

The fourth proportional to 5,128.58, 7,692.84 and 2,935.76 is: 4,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.58 : 7,692.84 = 2,935.76 : x
  2. Step 2: Convert to fraction form
    5,128.58/7,692.84 = 2,935.76/x
  3. Step 3: Cross multiply
    5,128.58x = 7,692.84 × 2,935.76
  4. Step 4: Simplify right side
    5,128.58x = 22,584,331.96
  5. Step 5: Solve for x
    x = 22,584,331.96/5,128.58
  6. Step 6: Final answer
    x = 4,403.62

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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.