Home / 7,316.72-10,976.22-3,157.90

Finding the Fourth Proportional to 7,316.72, 10,976.22 and 3,157.90

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Solution

The fourth proportional to 7,316.72, 10,976.22 and 3,157.90 is: 4,737.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.72 : 10,976.22 = 3,157.90 : x
  2. Step 2: Convert to fraction form
    7,316.72/10,976.22 = 3,157.90/x
  3. Step 3: Cross multiply
    7,316.72x = 10,976.22 × 3,157.90
  4. Step 4: Simplify right side
    7,316.72x = 34,661,805.14
  5. Step 5: Solve for x
    x = 34,661,805.14/7,316.72
  6. Step 6: Final answer
    x = 4,737.34

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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.