Home / 3,231.55-4,459.59-1,815.55

Finding the Fourth Proportional to 3,231.55, 4,459.59 and 1,815.55

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Solution

The fourth proportional to 3,231.55, 4,459.59 and 1,815.55 is: 2,505.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.55 : 4,459.59 = 1,815.55 : x
  2. Step 2: Convert to fraction form
    3,231.55/4,459.59 = 1,815.55/x
  3. Step 3: Cross multiply
    3,231.55x = 4,459.59 × 1,815.55
  4. Step 4: Simplify right side
    3,231.55x = 8,096,608.62
  5. Step 5: Solve for x
    x = 8,096,608.62/3,231.55
  6. Step 6: Final answer
    x = 2,505.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.