Home / 2,956.12-4,079.88-1,777.84

Finding the Fourth Proportional to 2,956.12, 4,079.88 and 1,777.84

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Solution

The fourth proportional to 2,956.12, 4,079.88 and 1,777.84 is: 2,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.12 : 4,079.88 = 1,777.84 : x
  2. Step 2: Convert to fraction form
    2,956.12/4,079.88 = 1,777.84/x
  3. Step 3: Cross multiply
    2,956.12x = 4,079.88 × 1,777.84
  4. Step 4: Simplify right side
    2,956.12x = 7,253,373.86
  5. Step 5: Solve for x
    x = 7,253,373.86/2,956.12
  6. Step 6: Final answer
    x = 2,453.68

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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.