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Finding the Fourth Proportional to 1,750.75, 2,627.16 and 776.86

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Solution

The fourth proportional to 1,750.75, 2,627.16 and 776.86 is: 1,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.75 : 2,627.16 = 776.86 : x
  2. Step 2: Convert to fraction form
    1,750.75/2,627.16 = 776.86/x
  3. Step 3: Cross multiply
    1,750.75x = 2,627.16 × 776.86
  4. Step 4: Simplify right side
    1,750.75x = 2,040,935.52
  5. Step 5: Solve for x
    x = 2,040,935.52/1,750.75
  6. Step 6: Final answer
    x = 1,165.75

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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.