Home / 3,318.47-4,581.33-1,992.50

Finding the Fourth Proportional to 3,318.47, 4,581.33 and 1,992.50

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Solution

The fourth proportional to 3,318.47, 4,581.33 and 1,992.50 is: 2,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.47 : 4,581.33 = 1,992.50 : x
  2. Step 2: Convert to fraction form
    3,318.47/4,581.33 = 1,992.50/x
  3. Step 3: Cross multiply
    3,318.47x = 4,581.33 × 1,992.50
  4. Step 4: Simplify right side
    3,318.47x = 9,128,300.03
  5. Step 5: Solve for x
    x = 9,128,300.03/3,318.47
  6. Step 6: Final answer
    x = 2,750.76

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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.