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Finding the Fourth Proportional to 2,500.19, 3,750.36 and 768.82

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Solution

The fourth proportional to 2,500.19, 3,750.36 and 768.82 is: 1,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.19 : 3,750.36 = 768.82 : x
  2. Step 2: Convert to fraction form
    2,500.19/3,750.36 = 768.82/x
  3. Step 3: Cross multiply
    2,500.19x = 3,750.36 × 768.82
  4. Step 4: Simplify right side
    2,500.19x = 2,883,351.78
  5. Step 5: Solve for x
    x = 2,883,351.78/2,500.19
  6. Step 6: Final answer
    x = 1,153.25

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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.