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Finding the Fourth Proportional to 6,145.88, 8,480.18 and 3,456.32

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Solution

The fourth proportional to 6,145.88, 8,480.18 and 3,456.32 is: 4,769.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.88 : 8,480.18 = 3,456.32 : x
  2. Step 2: Convert to fraction form
    6,145.88/8,480.18 = 3,456.32/x
  3. Step 3: Cross multiply
    6,145.88x = 8,480.18 × 3,456.32
  4. Step 4: Simplify right side
    6,145.88x = 29,310,181.98
  5. Step 5: Solve for x
    x = 29,310,181.98/6,145.88
  6. Step 6: Final answer
    x = 4,769.08

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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.