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Finding the Fourth Proportional to 6,262.56, 8,646.48 and 3,780

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Solution

The fourth proportional to 6,262.56, 8,646.48 and 3,780 is: 5,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,262.56 : 8,646.48 = 3,780 : x
  2. Step 2: Convert to fraction form
    6,262.56/8,646.48 = 3,780/x
  3. Step 3: Cross multiply
    6,262.56x = 8,646.48 × 3,780
  4. Step 4: Simplify right side
    6,262.56x = 32,683,694.40
  5. Step 5: Solve for x
    x = 32,683,694.40/6,262.56
  6. Step 6: Final answer
    x = 5,218.90

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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.