Home / 5,618.96-8,429.52-2,155.94

Finding the Fourth Proportional to 5,618.96, 8,429.52 and 2,155.94

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Solution

The fourth proportional to 5,618.96, 8,429.52 and 2,155.94 is: 3,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.96 : 8,429.52 = 2,155.94 : x
  2. Step 2: Convert to fraction form
    5,618.96/8,429.52 = 2,155.94/x
  3. Step 3: Cross multiply
    5,618.96x = 8,429.52 × 2,155.94
  4. Step 4: Simplify right side
    5,618.96x = 18,173,539.35
  5. Step 5: Solve for x
    x = 18,173,539.35/5,618.96
  6. Step 6: Final answer
    x = 3,234.32

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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.