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Finding the Fourth Proportional to 5,975.40, 8,243.88 and 3,616.68

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Solution

The fourth proportional to 5,975.40, 8,243.88 and 3,616.68 is: 4,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,975.40 : 8,243.88 = 3,616.68 : x
  2. Step 2: Convert to fraction form
    5,975.40/8,243.88 = 3,616.68/x
  3. Step 3: Cross multiply
    5,975.40x = 8,243.88 × 3,616.68
  4. Step 4: Simplify right side
    5,975.40x = 29,815,475.92
  5. Step 5: Solve for x
    x = 29,815,475.92/5,975.40
  6. Step 6: Final answer
    x = 4,989.70

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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.