Home / 5,079.39-7,615.50-1,956.78

Finding the Fourth Proportional to 5,079.39, 7,615.50 and 1,956.78

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Solution

The fourth proportional to 5,079.39, 7,615.50 and 1,956.78 is: 2,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.39 : 7,615.50 = 1,956.78 : x
  2. Step 2: Convert to fraction form
    5,079.39/7,615.50 = 1,956.78/x
  3. Step 3: Cross multiply
    5,079.39x = 7,615.50 × 1,956.78
  4. Step 4: Simplify right side
    5,079.39x = 14,901,858.09
  5. Step 5: Solve for x
    x = 14,901,858.09/5,079.39
  6. Step 6: Final answer
    x = 2,933.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.