Home / 6,426.76-9,642.87-2,729.78

Finding the Fourth Proportional to 6,426.76, 9,642.87 and 2,729.78

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Solution

The fourth proportional to 6,426.76, 9,642.87 and 2,729.78 is: 4,095.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.76 : 9,642.87 = 2,729.78 : x
  2. Step 2: Convert to fraction form
    6,426.76/9,642.87 = 2,729.78/x
  3. Step 3: Cross multiply
    6,426.76x = 9,642.87 × 2,729.78
  4. Step 4: Simplify right side
    6,426.76x = 26,322,937.78
  5. Step 5: Solve for x
    x = 26,322,937.78/6,426.76
  6. Step 6: Final answer
    x = 4,095.83

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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.