Home / 5,476.32-8,215.20-2,879.40

Finding the Fourth Proportional to 5,476.32, 8,215.20 and 2,879.40

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Solution

The fourth proportional to 5,476.32, 8,215.20 and 2,879.40 is: 4,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.32 : 8,215.20 = 2,879.40 : x
  2. Step 2: Convert to fraction form
    5,476.32/8,215.20 = 2,879.40/x
  3. Step 3: Cross multiply
    5,476.32x = 8,215.20 × 2,879.40
  4. Step 4: Simplify right side
    5,476.32x = 23,654,846.88
  5. Step 5: Solve for x
    x = 23,654,846.88/5,476.32
  6. Step 6: Final answer
    x = 4,319.48

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.