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Finding the Fourth Proportional to 1,494.16, 2,241.84 and 520.94

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Solution

The fourth proportional to 1,494.16, 2,241.84 and 520.94 is: 781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.16 : 2,241.84 = 520.94 : x
  2. Step 2: Convert to fraction form
    1,494.16/2,241.84 = 520.94/x
  3. Step 3: Cross multiply
    1,494.16x = 2,241.84 × 520.94
  4. Step 4: Simplify right side
    1,494.16x = 1,167,864.13
  5. Step 5: Solve for x
    x = 1,167,864.13/1,494.16
  6. Step 6: Final answer
    x = 781.62

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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.