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Finding the Fourth Proportional to 6,278.67, 8,664.65 and 3,445.98

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Solution

The fourth proportional to 6,278.67, 8,664.65 and 3,445.98 is: 4,755.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.67 : 8,664.65 = 3,445.98 : x
  2. Step 2: Convert to fraction form
    6,278.67/8,664.65 = 3,445.98/x
  3. Step 3: Cross multiply
    6,278.67x = 8,664.65 × 3,445.98
  4. Step 4: Simplify right side
    6,278.67x = 29,858,210.61
  5. Step 5: Solve for x
    x = 29,858,210.61/6,278.67
  6. Step 6: Final answer
    x = 4,755.50

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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.