Home / 4,779.25-7,169.18-1,269.20

Finding the Fourth Proportional to 4,779.25, 7,169.18 and 1,269.20

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Solution

The fourth proportional to 4,779.25, 7,169.18 and 1,269.20 is: 1,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.25 : 7,169.18 = 1,269.20 : x
  2. Step 2: Convert to fraction form
    4,779.25/7,169.18 = 1,269.20/x
  3. Step 3: Cross multiply
    4,779.25x = 7,169.18 × 1,269.20
  4. Step 4: Simplify right side
    4,779.25x = 9,099,134.83
  5. Step 5: Solve for x
    x = 9,099,134.83/4,779.25
  6. Step 6: Final answer
    x = 1,903.88

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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.