Home / 3,127.96-4,692.04-1,280.96

Finding the Fourth Proportional to 3,127.96, 4,692.04 and 1,280.96

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Solution

The fourth proportional to 3,127.96, 4,692.04 and 1,280.96 is: 1,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.96 : 4,692.04 = 1,280.96 : x
  2. Step 2: Convert to fraction form
    3,127.96/4,692.04 = 1,280.96/x
  3. Step 3: Cross multiply
    3,127.96x = 4,692.04 × 1,280.96
  4. Step 4: Simplify right side
    3,127.96x = 6,010,315.56
  5. Step 5: Solve for x
    x = 6,010,315.56/3,127.96
  6. Step 6: Final answer
    x = 1,921.48

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Half scale
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Double scale
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Similar ratio
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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.