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Finding the Fourth Proportional to 4,676.81, 6,454.03 and 2,788.07

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Solution

The fourth proportional to 4,676.81, 6,454.03 and 2,788.07 is: 3,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.81 : 6,454.03 = 2,788.07 : x
  2. Step 2: Convert to fraction form
    4,676.81/6,454.03 = 2,788.07/x
  3. Step 3: Cross multiply
    4,676.81x = 6,454.03 × 2,788.07
  4. Step 4: Simplify right side
    4,676.81x = 17,994,289.71
  5. Step 5: Solve for x
    x = 17,994,289.71/4,676.81
  6. Step 6: Final answer
    x = 3,847.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.