Home / 6,310.10-8,706.39-3,918.98

Finding the Fourth Proportional to 6,310.10, 8,706.39 and 3,918.98

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Solution

The fourth proportional to 6,310.10, 8,706.39 and 3,918.98 is: 5,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.10 : 8,706.39 = 3,918.98 : x
  2. Step 2: Convert to fraction form
    6,310.10/8,706.39 = 3,918.98/x
  3. Step 3: Cross multiply
    6,310.10x = 8,706.39 × 3,918.98
  4. Step 4: Simplify right side
    6,310.10x = 34,120,175.35
  5. Step 5: Solve for x
    x = 34,120,175.35/6,310.10
  6. Step 6: Final answer
    x = 5,407.23

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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.