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Finding the Fourth Proportional to 4,676.92, 7,016.58 and 1,389.94

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Solution

The fourth proportional to 4,676.92, 7,016.58 and 1,389.94 is: 2,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.92 : 7,016.58 = 1,389.94 : x
  2. Step 2: Convert to fraction form
    4,676.92/7,016.58 = 1,389.94/x
  3. Step 3: Cross multiply
    4,676.92x = 7,016.58 × 1,389.94
  4. Step 4: Simplify right side
    4,676.92x = 9,752,625.21
  5. Step 5: Solve for x
    x = 9,752,625.21/4,676.92
  6. Step 6: Final answer
    x = 2,085.27

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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.