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Finding the Fourth Proportional to 6,671.54, 9,982.67 and 5,490.56

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Solution

The fourth proportional to 6,671.54, 9,982.67 and 5,490.56 is: 8,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,671.54 : 9,982.67 = 5,490.56 : x
  2. Step 2: Convert to fraction form
    6,671.54/9,982.67 = 5,490.56/x
  3. Step 3: Cross multiply
    6,671.54x = 9,982.67 × 5,490.56
  4. Step 4: Simplify right side
    6,671.54x = 54,810,448.60
  5. Step 5: Solve for x
    x = 54,810,448.60/6,671.54
  6. Step 6: Final answer
    x = 8,215.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.