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Finding the Fourth Proportional to 4,905.06, 6,768.95 and 2,666.91

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Solution

The fourth proportional to 4,905.06, 6,768.95 and 2,666.91 is: 3,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.06 : 6,768.95 = 2,666.91 : x
  2. Step 2: Convert to fraction form
    4,905.06/6,768.95 = 2,666.91/x
  3. Step 3: Cross multiply
    4,905.06x = 6,768.95 × 2,666.91
  4. Step 4: Simplify right side
    4,905.06x = 18,052,180.44
  5. Step 5: Solve for x
    x = 18,052,180.44/4,905.06
  6. Step 6: Final answer
    x = 3,680.32

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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.