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Finding the Fourth Proportional to 6,652.74, 9,979.01 and 1,721.98

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Solution

The fourth proportional to 6,652.74, 9,979.01 and 1,721.98 is: 2,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652.74 : 9,979.01 = 1,721.98 : x
  2. Step 2: Convert to fraction form
    6,652.74/9,979.01 = 1,721.98/x
  3. Step 3: Cross multiply
    6,652.74x = 9,979.01 × 1,721.98
  4. Step 4: Simplify right side
    6,652.74x = 17,183,655.64
  5. Step 5: Solve for x
    x = 17,183,655.64/6,652.74
  6. Step 6: Final answer
    x = 2,582.94

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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.