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Finding the Fourth Proportional to 4,915.80, 6,776.64 and 3,734.82

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Solution

The fourth proportional to 4,915.80, 6,776.64 and 3,734.82 is: 5,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.80 : 6,776.64 = 3,734.82 : x
  2. Step 2: Convert to fraction form
    4,915.80/6,776.64 = 3,734.82/x
  3. Step 3: Cross multiply
    4,915.80x = 6,776.64 × 3,734.82
  4. Step 4: Simplify right side
    4,915.80x = 25,309,530.60
  5. Step 5: Solve for x
    x = 25,309,530.60/4,915.80
  6. Step 6: Final answer
    x = 5,148.61

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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.