Home / 5,454.39-8,173.74-3,109.53

Finding the Fourth Proportional to 5,454.39, 8,173.74 and 3,109.53

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Solution

The fourth proportional to 5,454.39, 8,173.74 and 3,109.53 is: 4,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.39 : 8,173.74 = 3,109.53 : x
  2. Step 2: Convert to fraction form
    5,454.39/8,173.74 = 3,109.53/x
  3. Step 3: Cross multiply
    5,454.39x = 8,173.74 × 3,109.53
  4. Step 4: Simplify right side
    5,454.39x = 25,416,489.74
  5. Step 5: Solve for x
    x = 25,416,489.74/5,454.39
  6. Step 6: Final answer
    x = 4,659.82

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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.