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Finding the Fourth Proportional to 6,280.85, 8,664.41 and 4,291.49

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Solution

The fourth proportional to 6,280.85, 8,664.41 and 4,291.49 is: 5,920.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.85 : 8,664.41 = 4,291.49 : x
  2. Step 2: Convert to fraction form
    6,280.85/8,664.41 = 4,291.49/x
  3. Step 3: Cross multiply
    6,280.85x = 8,664.41 × 4,291.49
  4. Step 4: Simplify right side
    6,280.85x = 37,183,164.09
  5. Step 5: Solve for x
    x = 37,183,164.09/6,280.85
  6. Step 6: Final answer
    x = 5,920.09

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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.