Home / 4,791.20-6,611.84-2,666.70

Finding the Fourth Proportional to 4,791.20, 6,611.84 and 2,666.70

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Solution

The fourth proportional to 4,791.20, 6,611.84 and 2,666.70 is: 3,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.20 : 6,611.84 = 2,666.70 : x
  2. Step 2: Convert to fraction form
    4,791.20/6,611.84 = 2,666.70/x
  3. Step 3: Cross multiply
    4,791.20x = 6,611.84 × 2,666.70
  4. Step 4: Simplify right side
    4,791.20x = 17,631,780.39
  5. Step 5: Solve for x
    x = 17,631,780.39/4,791.20
  6. Step 6: Final answer
    x = 3,680.04

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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.