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Finding the Fourth Proportional to 4,783.78, 6,607.74 and 3,657.88

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Solution

The fourth proportional to 4,783.78, 6,607.74 and 3,657.88 is: 5,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.78 : 6,607.74 = 3,657.88 : x
  2. Step 2: Convert to fraction form
    4,783.78/6,607.74 = 3,657.88/x
  3. Step 3: Cross multiply
    4,783.78x = 6,607.74 × 3,657.88
  4. Step 4: Simplify right side
    4,783.78x = 24,170,319.99
  5. Step 5: Solve for x
    x = 24,170,319.99/4,783.78
  6. Step 6: Final answer
    x = 5,052.56

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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.