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Finding the Fourth Proportional to 6,662.61, 9,191.34 and 4,305.51

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Solution

The fourth proportional to 6,662.61, 9,191.34 and 4,305.51 is: 5,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.61 : 9,191.34 = 4,305.51 : x
  2. Step 2: Convert to fraction form
    6,662.61/9,191.34 = 4,305.51/x
  3. Step 3: Cross multiply
    6,662.61x = 9,191.34 × 4,305.51
  4. Step 4: Simplify right side
    6,662.61x = 39,573,406.28
  5. Step 5: Solve for x
    x = 39,573,406.28/6,662.61
  6. Step 6: Final answer
    x = 5,939.63

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Double scale
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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.