Home / 2,739.42-4,079.16-2,669.76

Finding the Fourth Proportional to 2,739.42, 4,079.16 and 2,669.76

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Solution

The fourth proportional to 2,739.42, 4,079.16 and 2,669.76 is: 3,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.42 : 4,079.16 = 2,669.76 : x
  2. Step 2: Convert to fraction form
    2,739.42/4,079.16 = 2,669.76/x
  3. Step 3: Cross multiply
    2,739.42x = 4,079.16 × 2,669.76
  4. Step 4: Simplify right side
    2,739.42x = 10,890,378.20
  5. Step 5: Solve for x
    x = 10,890,378.20/2,739.42
  6. Step 6: Final answer
    x = 3,975.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.