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Finding the Fourth Proportional to 6,717.92, 10,077.08 and 1,788.08

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Solution

The fourth proportional to 6,717.92, 10,077.08 and 1,788.08 is: 2,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.92 : 10,077.08 = 1,788.08 : x
  2. Step 2: Convert to fraction form
    6,717.92/10,077.08 = 1,788.08/x
  3. Step 3: Cross multiply
    6,717.92x = 10,077.08 × 1,788.08
  4. Step 4: Simplify right side
    6,717.92x = 18,018,625.21
  5. Step 5: Solve for x
    x = 18,018,625.21/6,717.92
  6. Step 6: Final answer
    x = 2,682.17

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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.