Home / 4,779.78-7,166.40-2,435.25

Finding the Fourth Proportional to 4,779.78, 7,166.40 and 2,435.25

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Solution

The fourth proportional to 4,779.78, 7,166.40 and 2,435.25 is: 3,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.78 : 7,166.40 = 2,435.25 : x
  2. Step 2: Convert to fraction form
    4,779.78/7,166.40 = 2,435.25/x
  3. Step 3: Cross multiply
    4,779.78x = 7,166.40 × 2,435.25
  4. Step 4: Simplify right side
    4,779.78x = 17,451,975.60
  5. Step 5: Solve for x
    x = 17,451,975.60/4,779.78
  6. Step 6: Final answer
    x = 3,651.21

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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.