Home / 5,415.30-8,104.46-4,538.79

Finding the Fourth Proportional to 5,415.30, 8,104.46 and 4,538.79

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Solution

The fourth proportional to 5,415.30, 8,104.46 and 4,538.79 is: 6,792.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.30 : 8,104.46 = 4,538.79 : x
  2. Step 2: Convert to fraction form
    5,415.30/8,104.46 = 4,538.79/x
  3. Step 3: Cross multiply
    5,415.30x = 8,104.46 × 4,538.79
  4. Step 4: Simplify right side
    5,415.30x = 36,784,435.93
  5. Step 5: Solve for x
    x = 36,784,435.93/5,415.30
  6. Step 6: Final answer
    x = 6,792.69

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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.