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Finding the Fourth Proportional to 5,991.84, 8,265.36 and 3,780

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Solution

The fourth proportional to 5,991.84, 8,265.36 and 3,780 is: 5,214.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.84 : 8,265.36 = 3,780 : x
  2. Step 2: Convert to fraction form
    5,991.84/8,265.36 = 3,780/x
  3. Step 3: Cross multiply
    5,991.84x = 8,265.36 × 3,780
  4. Step 4: Simplify right side
    5,991.84x = 31,243,060.80
  5. Step 5: Solve for x
    x = 31,243,060.80/5,991.84
  6. Step 6: Final answer
    x = 5,214.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.