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Finding the Fourth Proportional to 6,300.69, 8,692.61 and 6,290.97

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Solution

The fourth proportional to 6,300.69, 8,692.61 and 6,290.97 is: 8,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,300.69 : 8,692.61 = 6,290.97 : x
  2. Step 2: Convert to fraction form
    6,300.69/8,692.61 = 6,290.97/x
  3. Step 3: Cross multiply
    6,300.69x = 8,692.61 × 6,290.97
  4. Step 4: Simplify right side
    6,300.69x = 54,684,948.73
  5. Step 5: Solve for x
    x = 54,684,948.73/6,300.69
  6. Step 6: Final answer
    x = 8,679.20

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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.