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Finding the Fourth Proportional to 6,387.53, 9,579.84 and 2,003.94

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Solution

The fourth proportional to 6,387.53, 9,579.84 and 2,003.94 is: 3,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.53 : 9,579.84 = 2,003.94 : x
  2. Step 2: Convert to fraction form
    6,387.53/9,579.84 = 2,003.94/x
  3. Step 3: Cross multiply
    6,387.53x = 9,579.84 × 2,003.94
  4. Step 4: Simplify right side
    6,387.53x = 19,197,417.05
  5. Step 5: Solve for x
    x = 19,197,417.05/6,387.53
  6. Step 6: Final answer
    x = 3,005.45

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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.