Home / 3,539.96-4,879.52-2,792.70

Finding the Fourth Proportional to 3,539.96, 4,879.52 and 2,792.70

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Solution

The fourth proportional to 3,539.96, 4,879.52 and 2,792.70 is: 3,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.96 : 4,879.52 = 2,792.70 : x
  2. Step 2: Convert to fraction form
    3,539.96/4,879.52 = 2,792.70/x
  3. Step 3: Cross multiply
    3,539.96x = 4,879.52 × 2,792.70
  4. Step 4: Simplify right side
    3,539.96x = 13,627,035.50
  5. Step 5: Solve for x
    x = 13,627,035.50/3,539.96
  6. Step 6: Final answer
    x = 3,849.49

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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.