Home / 3,231.21-4,459.65-1,904.84

Finding the Fourth Proportional to 3,231.21, 4,459.65 and 1,904.84

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Solution

The fourth proportional to 3,231.21, 4,459.65 and 1,904.84 is: 2,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.21 : 4,459.65 = 1,904.84 : x
  2. Step 2: Convert to fraction form
    3,231.21/4,459.65 = 1,904.84/x
  3. Step 3: Cross multiply
    3,231.21x = 4,459.65 × 1,904.84
  4. Step 4: Simplify right side
    3,231.21x = 8,494,919.71
  5. Step 5: Solve for x
    x = 8,494,919.71/3,231.21
  6. Step 6: Final answer
    x = 2,629.02

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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.