Home / 5,151.30-7,707.80-3,072.43

Finding the Fourth Proportional to 5,151.30, 7,707.80 and 3,072.43

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Solution

The fourth proportional to 5,151.30, 7,707.80 and 3,072.43 is: 4,597.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.30 : 7,707.80 = 3,072.43 : x
  2. Step 2: Convert to fraction form
    5,151.30/7,707.80 = 3,072.43/x
  3. Step 3: Cross multiply
    5,151.30x = 7,707.80 × 3,072.43
  4. Step 4: Simplify right side
    5,151.30x = 23,681,675.99
  5. Step 5: Solve for x
    x = 23,681,675.99/5,151.30
  6. Step 6: Final answer
    x = 4,597.23

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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.