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Finding the Fourth Proportional to 2,754.90, 4,125.29 and 1,520.94

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Solution

The fourth proportional to 2,754.90, 4,125.29 and 1,520.94 is: 2,277.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.90 : 4,125.29 = 1,520.94 : x
  2. Step 2: Convert to fraction form
    2,754.90/4,125.29 = 1,520.94/x
  3. Step 3: Cross multiply
    2,754.90x = 4,125.29 × 1,520.94
  4. Step 4: Simplify right side
    2,754.90x = 6,274,318.57
  5. Step 5: Solve for x
    x = 6,274,318.57/2,754.90
  6. Step 6: Final answer
    x = 2,277.51

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1.5x scale

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.