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Finding the Fourth Proportional to 6,660.76, 9,192.07 and 3,828.66

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Solution

The fourth proportional to 6,660.76, 9,192.07 and 3,828.66 is: 5,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.76 : 9,192.07 = 3,828.66 : x
  2. Step 2: Convert to fraction form
    6,660.76/9,192.07 = 3,828.66/x
  3. Step 3: Cross multiply
    6,660.76x = 9,192.07 × 3,828.66
  4. Step 4: Simplify right side
    6,660.76x = 35,193,264.77
  5. Step 5: Solve for x
    x = 35,193,264.77/6,660.76
  6. Step 6: Final answer
    x = 5,283.68

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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.