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Finding the Fourth Proportional to 2,751.76, 4,125.72 and 1,019.92

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Solution

The fourth proportional to 2,751.76, 4,125.72 and 1,019.92 is: 1,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.76 : 4,125.72 = 1,019.92 : x
  2. Step 2: Convert to fraction form
    2,751.76/4,125.72 = 1,019.92/x
  3. Step 3: Cross multiply
    2,751.76x = 4,125.72 × 1,019.92
  4. Step 4: Simplify right side
    2,751.76x = 4,207,904.34
  5. Step 5: Solve for x
    x = 4,207,904.34/2,751.76
  6. Step 6: Final answer
    x = 1,529.17

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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.