Home / 2,539.17-3,499.88-1,949.90

Finding the Fourth Proportional to 2,539.17, 3,499.88 and 1,949.90

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Solution

The fourth proportional to 2,539.17, 3,499.88 and 1,949.90 is: 2,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.17 : 3,499.88 = 1,949.90 : x
  2. Step 2: Convert to fraction form
    2,539.17/3,499.88 = 1,949.90/x
  3. Step 3: Cross multiply
    2,539.17x = 3,499.88 × 1,949.90
  4. Step 4: Simplify right side
    2,539.17x = 6,824,388.76
  5. Step 5: Solve for x
    x = 6,824,388.76/2,539.17
  6. Step 6: Final answer
    x = 2,687.65

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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.