Home / 4,858.80-7,278.60-2,905.20

Finding the Fourth Proportional to 4,858.80, 7,278.60 and 2,905.20

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Solution

The fourth proportional to 4,858.80, 7,278.60 and 2,905.20 is: 4,352.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858.80 : 7,278.60 = 2,905.20 : x
  2. Step 2: Convert to fraction form
    4,858.80/7,278.60 = 2,905.20/x
  3. Step 3: Cross multiply
    4,858.80x = 7,278.60 × 2,905.20
  4. Step 4: Simplify right side
    4,858.80x = 21,145,788.72
  5. Step 5: Solve for x
    x = 21,145,788.72/4,858.80
  6. Step 6: Final answer
    x = 4,352.06

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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.