Home / 4,791.28-6,615.48-2,930.80

Finding the Fourth Proportional to 4,791.28, 6,615.48 and 2,930.80

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Solution

The fourth proportional to 4,791.28, 6,615.48 and 2,930.80 is: 4,046.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.28 : 6,615.48 = 2,930.80 : x
  2. Step 2: Convert to fraction form
    4,791.28/6,615.48 = 2,930.80/x
  3. Step 3: Cross multiply
    4,791.28x = 6,615.48 × 2,930.80
  4. Step 4: Simplify right side
    4,791.28x = 19,388,648.78
  5. Step 5: Solve for x
    x = 19,388,648.78/4,791.28
  6. Step 6: Final answer
    x = 4,046.65

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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.