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Finding the Fourth Proportional to 1,629.46, 2,443.74 and 656.08

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Solution

The fourth proportional to 1,629.46, 2,443.74 and 656.08 is: 983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.46 : 2,443.74 = 656.08 : x
  2. Step 2: Convert to fraction form
    1,629.46/2,443.74 = 656.08/x
  3. Step 3: Cross multiply
    1,629.46x = 2,443.74 × 656.08
  4. Step 4: Simplify right side
    1,629.46x = 1,603,288.94
  5. Step 5: Solve for x
    x = 1,603,288.94/1,629.46
  6. Step 6: Final answer
    x = 983.94

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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.