Home / 2,739.45-3,777.15-1,900.88

Finding the Fourth Proportional to 2,739.45, 3,777.15 and 1,900.88

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Solution

The fourth proportional to 2,739.45, 3,777.15 and 1,900.88 is: 2,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.45 : 3,777.15 = 1,900.88 : x
  2. Step 2: Convert to fraction form
    2,739.45/3,777.15 = 1,900.88/x
  3. Step 3: Cross multiply
    2,739.45x = 3,777.15 × 1,900.88
  4. Step 4: Simplify right side
    2,739.45x = 7,179,880.50
  5. Step 5: Solve for x
    x = 7,179,880.50/2,739.45
  6. Step 6: Final answer
    x = 2,620.92

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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.