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Finding the Fourth Proportional to 6,657.84, 9,983.80 and 2,039.76

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Solution

The fourth proportional to 6,657.84, 9,983.80 and 2,039.76 is: 3,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.84 : 9,983.80 = 2,039.76 : x
  2. Step 2: Convert to fraction form
    6,657.84/9,983.80 = 2,039.76/x
  3. Step 3: Cross multiply
    6,657.84x = 9,983.80 × 2,039.76
  4. Step 4: Simplify right side
    6,657.84x = 20,364,555.89
  5. Step 5: Solve for x
    x = 20,364,555.89/6,657.84
  6. Step 6: Final answer
    x = 3,058.73

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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.