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Finding the Fourth Proportional to 4,720.82, 7,077.13 and 2,768.92

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Solution

The fourth proportional to 4,720.82, 7,077.13 and 2,768.92 is: 4,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.82 : 7,077.13 = 2,768.92 : x
  2. Step 2: Convert to fraction form
    4,720.82/7,077.13 = 2,768.92/x
  3. Step 3: Cross multiply
    4,720.82x = 7,077.13 × 2,768.92
  4. Step 4: Simplify right side
    4,720.82x = 19,596,006.80
  5. Step 5: Solve for x
    x = 19,596,006.80/4,720.82
  6. Step 6: Final answer
    x = 4,150.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.