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Finding the Fourth Proportional to 4,918.92, 7,387.98 and 4,738.44

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Solution

The fourth proportional to 4,918.92, 7,387.98 and 4,738.44 is: 7,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.92 : 7,387.98 = 4,738.44 : x
  2. Step 2: Convert to fraction form
    4,918.92/7,387.98 = 4,738.44/x
  3. Step 3: Cross multiply
    4,918.92x = 7,387.98 × 4,738.44
  4. Step 4: Simplify right side
    4,918.92x = 35,007,499.95
  5. Step 5: Solve for x
    x = 35,007,499.95/4,918.92
  6. Step 6: Final answer
    x = 7,116.91

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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.