Home / 4,779.20-7,168.55-1,491.92

Finding the Fourth Proportional to 4,779.20, 7,168.55 and 1,491.92

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Solution

The fourth proportional to 4,779.20, 7,168.55 and 1,491.92 is: 2,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.20 : 7,168.55 = 1,491.92 : x
  2. Step 2: Convert to fraction form
    4,779.20/7,168.55 = 1,491.92/x
  3. Step 3: Cross multiply
    4,779.20x = 7,168.55 × 1,491.92
  4. Step 4: Simplify right side
    4,779.20x = 10,694,895.09
  5. Step 5: Solve for x
    x = 10,694,895.09/4,779.20
  6. Step 6: Final answer
    x = 2,237.80

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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.