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Finding the Fourth Proportional to 4,718.26, 6,511.26 and 2,728.90

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Solution

The fourth proportional to 4,718.26, 6,511.26 and 2,728.90 is: 3,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.26 : 6,511.26 = 2,728.90 : x
  2. Step 2: Convert to fraction form
    4,718.26/6,511.26 = 2,728.90/x
  3. Step 3: Cross multiply
    4,718.26x = 6,511.26 × 2,728.90
  4. Step 4: Simplify right side
    4,718.26x = 17,768,577.41
  5. Step 5: Solve for x
    x = 17,768,577.41/4,718.26
  6. Step 6: Final answer
    x = 3,765.92

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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.