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Finding the Fourth Proportional to 2,956.46, 4,080 and 1,630.25

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Solution

The fourth proportional to 2,956.46, 4,080 and 1,630.25 is: 2,249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.46 : 4,080 = 1,630.25 : x
  2. Step 2: Convert to fraction form
    2,956.46/4,080 = 1,630.25/x
  3. Step 3: Cross multiply
    2,956.46x = 4,080 × 1,630.25
  4. Step 4: Simplify right side
    2,956.46x = 6,651,420
  5. Step 5: Solve for x
    x = 6,651,420/2,956.46
  6. Step 6: Final answer
    x = 2,249.79

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