Home / 5,458.85-8,191.52-2,171.06

Finding the Fourth Proportional to 5,458.85, 8,191.52 and 2,171.06

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Solution

The fourth proportional to 5,458.85, 8,191.52 and 2,171.06 is: 3,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.85 : 8,191.52 = 2,171.06 : x
  2. Step 2: Convert to fraction form
    5,458.85/8,191.52 = 2,171.06/x
  3. Step 3: Cross multiply
    5,458.85x = 8,191.52 × 2,171.06
  4. Step 4: Simplify right side
    5,458.85x = 17,784,281.41
  5. Step 5: Solve for x
    x = 17,784,281.41/5,458.85
  6. Step 6: Final answer
    x = 3,257.88

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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.