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Finding the Fourth Proportional to 6,884.78, 10,327.16 and 2,988.88

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Solution

The fourth proportional to 6,884.78, 10,327.16 and 2,988.88 is: 4,483.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,884.78 : 10,327.16 = 2,988.88 : x
  2. Step 2: Convert to fraction form
    6,884.78/10,327.16 = 2,988.88/x
  3. Step 3: Cross multiply
    6,884.78x = 10,327.16 × 2,988.88
  4. Step 4: Simplify right side
    6,884.78x = 30,866,641.98
  5. Step 5: Solve for x
    x = 30,866,641.98/6,884.78
  6. Step 6: Final answer
    x = 4,483.32

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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.