Home / 7,459.81-11,179.62-2,840.29

Finding the Fourth Proportional to 7,459.81, 11,179.62 and 2,840.29

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Solution

The fourth proportional to 7,459.81, 11,179.62 and 2,840.29 is: 4,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.81 : 11,179.62 = 2,840.29 : x
  2. Step 2: Convert to fraction form
    7,459.81/11,179.62 = 2,840.29/x
  3. Step 3: Cross multiply
    7,459.81x = 11,179.62 × 2,840.29
  4. Step 4: Simplify right side
    7,459.81x = 31,753,306.99
  5. Step 5: Solve for x
    x = 31,753,306.99/7,459.81
  6. Step 6: Final answer
    x = 4,256.59

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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.