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Finding the Fourth Proportional to 6,310.70, 8,817.70 and 6,310.70

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Solution

The fourth proportional to 6,310.70, 8,817.70 and 6,310.70 is: 8,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.70 : 8,817.70 = 6,310.70 : x
  2. Step 2: Convert to fraction form
    6,310.70/8,817.70 = 6,310.70/x
  3. Step 3: Cross multiply
    6,310.70x = 8,817.70 × 6,310.70
  4. Step 4: Simplify right side
    6,310.70x = 55,645,859.39
  5. Step 5: Solve for x
    x = 55,645,859.39/6,310.70
  6. Step 6: Final answer
    x = 8,817.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.