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Finding the Fourth Proportional to 2,750.76, 4,126.68 and 1,019.52

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Solution

The fourth proportional to 2,750.76, 4,126.68 and 1,019.52 is: 1,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.76 : 4,126.68 = 1,019.52 : x
  2. Step 2: Convert to fraction form
    2,750.76/4,126.68 = 1,019.52/x
  3. Step 3: Cross multiply
    2,750.76x = 4,126.68 × 1,019.52
  4. Step 4: Simplify right side
    2,750.76x = 4,207,232.79
  5. Step 5: Solve for x
    x = 4,207,232.79/2,750.76
  6. Step 6: Final answer
    x = 1,529.48

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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.