Home / 6,421.28-9,633.98-2,726.62

Finding the Fourth Proportional to 6,421.28, 9,633.98 and 2,726.62

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Solution

The fourth proportional to 6,421.28, 9,633.98 and 2,726.62 is: 4,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.28 : 9,633.98 = 2,726.62 : x
  2. Step 2: Convert to fraction form
    6,421.28/9,633.98 = 2,726.62/x
  3. Step 3: Cross multiply
    6,421.28x = 9,633.98 × 2,726.62
  4. Step 4: Simplify right side
    6,421.28x = 26,268,185.28
  5. Step 5: Solve for x
    x = 26,268,185.28/6,421.28
  6. Step 6: Final answer
    x = 4,090.80

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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.