Home / 5,790.28-7,990.60-3,137.69

Finding the Fourth Proportional to 5,790.28, 7,990.60 and 3,137.69

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Solution

The fourth proportional to 5,790.28, 7,990.60 and 3,137.69 is: 4,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.28 : 7,990.60 = 3,137.69 : x
  2. Step 2: Convert to fraction form
    5,790.28/7,990.60 = 3,137.69/x
  3. Step 3: Cross multiply
    5,790.28x = 7,990.60 × 3,137.69
  4. Step 4: Simplify right side
    5,790.28x = 25,071,998.78
  5. Step 5: Solve for x
    x = 25,071,998.78/5,790.28
  6. Step 6: Final answer
    x = 4,330.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.