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Finding the Fourth Proportional to 2,460.53, 3,690.84 and 729.16

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Solution

The fourth proportional to 2,460.53, 3,690.84 and 729.16 is: 1,093.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.53 : 3,690.84 = 729.16 : x
  2. Step 2: Convert to fraction form
    2,460.53/3,690.84 = 729.16/x
  3. Step 3: Cross multiply
    2,460.53x = 3,690.84 × 729.16
  4. Step 4: Simplify right side
    2,460.53x = 2,691,212.89
  5. Step 5: Solve for x
    x = 2,691,212.89/2,460.53
  6. Step 6: Final answer
    x = 1,093.75

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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.