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Finding the Fourth Proportional to 4,850.72, 7,276.08 and 3,878.72

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Solution

The fourth proportional to 4,850.72, 7,276.08 and 3,878.72 is: 5,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,850.72 : 7,276.08 = 3,878.72 : x
  2. Step 2: Convert to fraction form
    4,850.72/7,276.08 = 3,878.72/x
  3. Step 3: Cross multiply
    4,850.72x = 7,276.08 × 3,878.72
  4. Step 4: Simplify right side
    4,850.72x = 28,221,877.02
  5. Step 5: Solve for x
    x = 28,221,877.02/4,850.72
  6. Step 6: Final answer
    x = 5,818.08

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Similar ratio
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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.