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Finding the Fourth Proportional to 6,331.70, 8,735.82 and 3,678.60

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Solution

The fourth proportional to 6,331.70, 8,735.82 and 3,678.60 is: 5,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.70 : 8,735.82 = 3,678.60 : x
  2. Step 2: Convert to fraction form
    6,331.70/8,735.82 = 3,678.60/x
  3. Step 3: Cross multiply
    6,331.70x = 8,735.82 × 3,678.60
  4. Step 4: Simplify right side
    6,331.70x = 32,135,587.45
  5. Step 5: Solve for x
    x = 32,135,587.45/6,331.70
  6. Step 6: Final answer
    x = 5,075.35

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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.