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Finding the Fourth Proportional to 5,809.81, 8,019.60 and 3,451.94

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Solution

The fourth proportional to 5,809.81, 8,019.60 and 3,451.94 is: 4,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.81 : 8,019.60 = 3,451.94 : x
  2. Step 2: Convert to fraction form
    5,809.81/8,019.60 = 3,451.94/x
  3. Step 3: Cross multiply
    5,809.81x = 8,019.60 × 3,451.94
  4. Step 4: Simplify right side
    5,809.81x = 27,683,178.02
  5. Step 5: Solve for x
    x = 27,683,178.02/5,809.81
  6. Step 6: Final answer
    x = 4,764.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.