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Finding the Fourth Proportional to 3,776.95, 5,639.98 and 3,084.97

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Solution

The fourth proportional to 3,776.95, 5,639.98 and 3,084.97 is: 4,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.95 : 5,639.98 = 3,084.97 : x
  2. Step 2: Convert to fraction form
    3,776.95/5,639.98 = 3,084.97/x
  3. Step 3: Cross multiply
    3,776.95x = 5,639.98 × 3,084.97
  4. Step 4: Simplify right side
    3,776.95x = 17,399,169.10
  5. Step 5: Solve for x
    x = 17,399,169.10/3,776.95
  6. Step 6: Final answer
    x = 4,606.67

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.