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Finding the Fourth Proportional to 4,718.78, 6,511.92 and 2,622.92

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Solution

The fourth proportional to 4,718.78, 6,511.92 and 2,622.92 is: 3,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.78 : 6,511.92 = 2,622.92 : x
  2. Step 2: Convert to fraction form
    4,718.78/6,511.92 = 2,622.92/x
  3. Step 3: Cross multiply
    4,718.78x = 6,511.92 × 2,622.92
  4. Step 4: Simplify right side
    4,718.78x = 17,080,245.21
  5. Step 5: Solve for x
    x = 17,080,245.21/4,718.78
  6. Step 6: Final answer
    x = 3,619.63

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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.