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Finding the Fourth Proportional to 2,786.48, 4,180.02 and 937.52

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Solution

The fourth proportional to 2,786.48, 4,180.02 and 937.52 is: 1,406.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.48 : 4,180.02 = 937.52 : x
  2. Step 2: Convert to fraction form
    2,786.48/4,180.02 = 937.52/x
  3. Step 3: Cross multiply
    2,786.48x = 4,180.02 × 937.52
  4. Step 4: Simplify right side
    2,786.48x = 3,918,852.35
  5. Step 5: Solve for x
    x = 3,918,852.35/2,786.48
  6. Step 6: Final answer
    x = 1,406.38

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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.