Home / 2,739.72-3,777.84-1,795.20

Finding the Fourth Proportional to 2,739.72, 3,777.84 and 1,795.20

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Solution

The fourth proportional to 2,739.72, 3,777.84 and 1,795.20 is: 2,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.72 : 3,777.84 = 1,795.20 : x
  2. Step 2: Convert to fraction form
    2,739.72/3,777.84 = 1,795.20/x
  3. Step 3: Cross multiply
    2,739.72x = 3,777.84 × 1,795.20
  4. Step 4: Simplify right side
    2,739.72x = 6,781,964.20
  5. Step 5: Solve for x
    x = 6,781,964.20/2,739.72
  6. Step 6: Final answer
    x = 2,475.42

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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.