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Finding the Fourth Proportional to 6,288.21, 8,677.71 and 3,493.71

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Solution

The fourth proportional to 6,288.21, 8,677.71 and 3,493.71 is: 4,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.21 : 8,677.71 = 3,493.71 : x
  2. Step 2: Convert to fraction form
    6,288.21/8,677.71 = 3,493.71/x
  3. Step 3: Cross multiply
    6,288.21x = 8,677.71 × 3,493.71
  4. Step 4: Simplify right side
    6,288.21x = 30,317,402.20
  5. Step 5: Solve for x
    x = 30,317,402.20/6,288.21
  6. Step 6: Final answer
    x = 4,821.31

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1.5x scale

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.