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Finding the Fourth Proportional to 4,878.98, 6,733.91 and 2,783.11

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Solution

The fourth proportional to 4,878.98, 6,733.91 and 2,783.11 is: 3,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.98 : 6,733.91 = 2,783.11 : x
  2. Step 2: Convert to fraction form
    4,878.98/6,733.91 = 2,783.11/x
  3. Step 3: Cross multiply
    4,878.98x = 6,733.91 × 2,783.11
  4. Step 4: Simplify right side
    4,878.98x = 18,741,207.18
  5. Step 5: Solve for x
    x = 18,741,207.18/4,878.98
  6. Step 6: Final answer
    x = 3,841.21

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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.