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Finding the Fourth Proportional to 1,954.56, 2,929.29 and 1,490.64

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Solution

The fourth proportional to 1,954.56, 2,929.29 and 1,490.64 is: 2,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.56 : 2,929.29 = 1,490.64 : x
  2. Step 2: Convert to fraction form
    1,954.56/2,929.29 = 1,490.64/x
  3. Step 3: Cross multiply
    1,954.56x = 2,929.29 × 1,490.64
  4. Step 4: Simplify right side
    1,954.56x = 4,366,516.85
  5. Step 5: Solve for x
    x = 4,366,516.85/1,954.56
  6. Step 6: Final answer
    x = 2,234.02

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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.