Home / 6,426.72-9,642.87-2,729.79

Finding the Fourth Proportional to 6,426.72, 9,642.87 and 2,729.79

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Solution

The fourth proportional to 6,426.72, 9,642.87 and 2,729.79 is: 4,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.72 : 9,642.87 = 2,729.79 : x
  2. Step 2: Convert to fraction form
    6,426.72/9,642.87 = 2,729.79/x
  3. Step 3: Cross multiply
    6,426.72x = 9,642.87 × 2,729.79
  4. Step 4: Simplify right side
    6,426.72x = 26,323,010.10
  5. Step 5: Solve for x
    x = 26,323,010.10/6,426.72
  6. Step 6: Final answer
    x = 4,095.87

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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.