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Finding the Fourth Proportional to 6,285.74, 8,654.46 and 4,788.86

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Solution

The fourth proportional to 6,285.74, 8,654.46 and 4,788.86 is: 6,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,285.74 : 8,654.46 = 4,788.86 : x
  2. Step 2: Convert to fraction form
    6,285.74/8,654.46 = 4,788.86/x
  3. Step 3: Cross multiply
    6,285.74x = 8,654.46 × 4,788.86
  4. Step 4: Simplify right side
    6,285.74x = 41,444,997.32
  5. Step 5: Solve for x
    x = 41,444,997.32/6,285.74
  6. Step 6: Final answer
    x = 6,593.50

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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.