Home / 7,651.21-11,477.63-2,721.31

Finding the Fourth Proportional to 7,651.21, 11,477.63 and 2,721.31

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Solution

The fourth proportional to 7,651.21, 11,477.63 and 2,721.31 is: 4,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.21 : 11,477.63 = 2,721.31 : x
  2. Step 2: Convert to fraction form
    7,651.21/11,477.63 = 2,721.31/x
  3. Step 3: Cross multiply
    7,651.21x = 11,477.63 × 2,721.31
  4. Step 4: Simplify right side
    7,651.21x = 31,234,189.30
  5. Step 5: Solve for x
    x = 31,234,189.30/7,651.21
  6. Step 6: Final answer
    x = 4,082.25

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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.