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Finding the Fourth Proportional to 2,489.63, 3,435.57 and 1,494.72

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Solution

The fourth proportional to 2,489.63, 3,435.57 and 1,494.72 is: 2,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.63 : 3,435.57 = 1,494.72 : x
  2. Step 2: Convert to fraction form
    2,489.63/3,435.57 = 1,494.72/x
  3. Step 3: Cross multiply
    2,489.63x = 3,435.57 × 1,494.72
  4. Step 4: Simplify right side
    2,489.63x = 5,135,215.19
  5. Step 5: Solve for x
    x = 5,135,215.19/2,489.63
  6. Step 6: Final answer
    x = 2,062.65

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Why These Related Problems?

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