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Finding the Fourth Proportional to 4,988.72, 6,884.72 and 2,751.06

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Solution

The fourth proportional to 4,988.72, 6,884.72 and 2,751.06 is: 3,796.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.72 : 6,884.72 = 2,751.06 : x
  2. Step 2: Convert to fraction form
    4,988.72/6,884.72 = 2,751.06/x
  3. Step 3: Cross multiply
    4,988.72x = 6,884.72 × 2,751.06
  4. Step 4: Simplify right side
    4,988.72x = 18,940,264.05
  5. Step 5: Solve for x
    x = 18,940,264.05/4,988.72
  6. Step 6: Final answer
    x = 3,796.62

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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.