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Finding the Fourth Proportional to 6,284.02, 8,671.70 and 3,489.70

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Solution

The fourth proportional to 6,284.02, 8,671.70 and 3,489.70 is: 4,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,284.02 : 8,671.70 = 3,489.70 : x
  2. Step 2: Convert to fraction form
    6,284.02/8,671.70 = 3,489.70/x
  3. Step 3: Cross multiply
    6,284.02x = 8,671.70 × 3,489.70
  4. Step 4: Simplify right side
    6,284.02x = 30,261,631.49
  5. Step 5: Solve for x
    x = 30,261,631.49/6,284.02
  6. Step 6: Final answer
    x = 4,815.65

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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.