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Finding the Fourth Proportional to 6,165.76, 8,507.90 and 3,512.65

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Solution

The fourth proportional to 6,165.76, 8,507.90 and 3,512.65 is: 4,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,165.76 : 8,507.90 = 3,512.65 : x
  2. Step 2: Convert to fraction form
    6,165.76/8,507.90 = 3,512.65/x
  3. Step 3: Cross multiply
    6,165.76x = 8,507.90 × 3,512.65
  4. Step 4: Simplify right side
    6,165.76x = 29,885,274.94
  5. Step 5: Solve for x
    x = 29,885,274.94/6,165.76
  6. Step 6: Final answer
    x = 4,846.97

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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.