Home / 3,319.28-4,982.52-2,992.40

Finding the Fourth Proportional to 3,319.28, 4,982.52 and 2,992.40

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Solution

The fourth proportional to 3,319.28, 4,982.52 and 2,992.40 is: 4,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.28 : 4,982.52 = 2,992.40 : x
  2. Step 2: Convert to fraction form
    3,319.28/4,982.52 = 2,992.40/x
  3. Step 3: Cross multiply
    3,319.28x = 4,982.52 × 2,992.40
  4. Step 4: Simplify right side
    3,319.28x = 14,909,692.85
  5. Step 5: Solve for x
    x = 14,909,692.85/3,319.28
  6. Step 6: Final answer
    x = 4,491.85

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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.