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Finding the Fourth Proportional to 4,478.80, 6,722.74 and 1,847.88

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Solution

The fourth proportional to 4,478.80, 6,722.74 and 1,847.88 is: 2,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.80 : 6,722.74 = 1,847.88 : x
  2. Step 2: Convert to fraction form
    4,478.80/6,722.74 = 1,847.88/x
  3. Step 3: Cross multiply
    4,478.80x = 6,722.74 × 1,847.88
  4. Step 4: Simplify right side
    4,478.80x = 12,422,844.31
  5. Step 5: Solve for x
    x = 12,422,844.31/4,478.80
  6. Step 6: Final answer
    x = 2,773.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.