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Finding the Fourth Proportional to 5,979.76, 8,243.04 and 4,208.56

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Solution

The fourth proportional to 5,979.76, 8,243.04 and 4,208.56 is: 5,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.76 : 8,243.04 = 4,208.56 : x
  2. Step 2: Convert to fraction form
    5,979.76/8,243.04 = 4,208.56/x
  3. Step 3: Cross multiply
    5,979.76x = 8,243.04 × 4,208.56
  4. Step 4: Simplify right side
    5,979.76x = 34,691,328.42
  5. Step 5: Solve for x
    x = 34,691,328.42/5,979.76
  6. Step 6: Final answer
    x = 5,801.46

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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.