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Finding the Fourth Proportional to 2,699.64, 3,725.51 and 1,520.73

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Solution

The fourth proportional to 2,699.64, 3,725.51 and 1,520.73 is: 2,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.64 : 3,725.51 = 1,520.73 : x
  2. Step 2: Convert to fraction form
    2,699.64/3,725.51 = 1,520.73/x
  3. Step 3: Cross multiply
    2,699.64x = 3,725.51 × 1,520.73
  4. Step 4: Simplify right side
    2,699.64x = 5,665,487.22
  5. Step 5: Solve for x
    x = 5,665,487.22/2,699.64
  6. Step 6: Final answer
    x = 2,098.61

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1.5x scale

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.