Home / 3,231.70-4,459.08-1,904.50

Finding the Fourth Proportional to 3,231.70, 4,459.08 and 1,904.50

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Solution

The fourth proportional to 3,231.70, 4,459.08 and 1,904.50 is: 2,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.70 : 4,459.08 = 1,904.50 : x
  2. Step 2: Convert to fraction form
    3,231.70/4,459.08 = 1,904.50/x
  3. Step 3: Cross multiply
    3,231.70x = 4,459.08 × 1,904.50
  4. Step 4: Simplify right side
    3,231.70x = 8,492,317.86
  5. Step 5: Solve for x
    x = 8,492,317.86/3,231.70
  6. Step 6: Final answer
    x = 2,627.82

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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.