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Finding the Fourth Proportional to 3,332, 4,997.76 and 1,383.68

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Solution

The fourth proportional to 3,332, 4,997.76 and 1,383.68 is: 2,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332 : 4,997.76 = 1,383.68 : x
  2. Step 2: Convert to fraction form
    3,332/4,997.76 = 1,383.68/x
  3. Step 3: Cross multiply
    3,332x = 4,997.76 × 1,383.68
  4. Step 4: Simplify right side
    3,332x = 6,915,300.56
  5. Step 5: Solve for x
    x = 6,915,300.56/3,332
  6. Step 6: Final answer
    x = 2,075.42

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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.