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Finding the Fourth Proportional to 6,278.34, 8,663.51 and 3,759.98

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Solution

The fourth proportional to 6,278.34, 8,663.51 and 3,759.98 is: 5,188.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.34 : 8,663.51 = 3,759.98 : x
  2. Step 2: Convert to fraction form
    6,278.34/8,663.51 = 3,759.98/x
  3. Step 3: Cross multiply
    6,278.34x = 8,663.51 × 3,759.98
  4. Step 4: Simplify right side
    6,278.34x = 32,574,624.33
  5. Step 5: Solve for x
    x = 32,574,624.33/6,278.34
  6. Step 6: Final answer
    x = 5,188.41

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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.