Home / 4,779.10-7,158.19-3,388.21

Finding the Fourth Proportional to 4,779.10, 7,158.19 and 3,388.21

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Solution

The fourth proportional to 4,779.10, 7,158.19 and 3,388.21 is: 5,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.10 : 7,158.19 = 3,388.21 : x
  2. Step 2: Convert to fraction form
    4,779.10/7,158.19 = 3,388.21/x
  3. Step 3: Cross multiply
    4,779.10x = 7,158.19 × 3,388.21
  4. Step 4: Simplify right side
    4,779.10x = 24,253,450.94
  5. Step 5: Solve for x
    x = 24,253,450.94/4,779.10
  6. Step 6: Final answer
    x = 5,074.90

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1.5x scale

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.