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Finding the Fourth Proportional to 2,305.96, 3,459.24 and 919.42

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Solution

The fourth proportional to 2,305.96, 3,459.24 and 919.42 is: 1,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.96 : 3,459.24 = 919.42 : x
  2. Step 2: Convert to fraction form
    2,305.96/3,459.24 = 919.42/x
  3. Step 3: Cross multiply
    2,305.96x = 3,459.24 × 919.42
  4. Step 4: Simplify right side
    2,305.96x = 3,180,494.44
  5. Step 5: Solve for x
    x = 3,180,494.44/2,305.96
  6. Step 6: Final answer
    x = 1,379.25

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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.