Home / 6,440.90-9,665.00-2,742.75

Finding the Fourth Proportional to 6,440.90, 9,665.00 and 2,742.75

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Solution

The fourth proportional to 6,440.90, 9,665.00 and 2,742.75 is: 4,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.90 : 9,665.00 = 2,742.75 : x
  2. Step 2: Convert to fraction form
    6,440.90/9,665.00 = 2,742.75/x
  3. Step 3: Cross multiply
    6,440.90x = 9,665.00 × 2,742.75
  4. Step 4: Simplify right side
    6,440.90x = 26,508,665.04
  5. Step 5: Solve for x
    x = 26,508,665.04/6,440.90
  6. Step 6: Final answer
    x = 4,115.68

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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.