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Finding the Fourth Proportional to 6,392.70, 8,821.71 and 3,597.66

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Solution

The fourth proportional to 6,392.70, 8,821.71 and 3,597.66 is: 4,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.70 : 8,821.71 = 3,597.66 : x
  2. Step 2: Convert to fraction form
    6,392.70/8,821.71 = 3,597.66/x
  3. Step 3: Cross multiply
    6,392.70x = 8,821.71 × 3,597.66
  4. Step 4: Simplify right side
    6,392.70x = 31,737,513.20
  5. Step 5: Solve for x
    x = 31,737,513.20/6,392.70
  6. Step 6: Final answer
    x = 4,964.65

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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.