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Finding the Fourth Proportional to 6,267.15, 8,645.05 and 3,905.19

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Solution

The fourth proportional to 6,267.15, 8,645.05 and 3,905.19 is: 5,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,267.15 : 8,645.05 = 3,905.19 : x
  2. Step 2: Convert to fraction form
    6,267.15/8,645.05 = 3,905.19/x
  3. Step 3: Cross multiply
    6,267.15x = 8,645.05 × 3,905.19
  4. Step 4: Simplify right side
    6,267.15x = 33,760,562.81
  5. Step 5: Solve for x
    x = 33,760,562.81/6,267.15
  6. Step 6: Final answer
    x = 5,386.91

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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.