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Finding the Fourth Proportional to 6,348.48, 8,760.88 and 3,830.24

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Solution

The fourth proportional to 6,348.48, 8,760.88 and 3,830.24 is: 5,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348.48 : 8,760.88 = 3,830.24 : x
  2. Step 2: Convert to fraction form
    6,348.48/8,760.88 = 3,830.24/x
  3. Step 3: Cross multiply
    6,348.48x = 8,760.88 × 3,830.24
  4. Step 4: Simplify right side
    6,348.48x = 33,556,273.01
  5. Step 5: Solve for x
    x = 33,556,273.01/6,348.48
  6. Step 6: Final answer
    x = 5,285.72

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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.