Home / 5,790.56-7,990.91-3,137.96

Finding the Fourth Proportional to 5,790.56, 7,990.91 and 3,137.96

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Solution

The fourth proportional to 5,790.56, 7,990.91 and 3,137.96 is: 4,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.56 : 7,990.91 = 3,137.96 : x
  2. Step 2: Convert to fraction form
    5,790.56/7,990.91 = 3,137.96/x
  3. Step 3: Cross multiply
    5,790.56x = 7,990.91 × 3,137.96
  4. Step 4: Simplify right side
    5,790.56x = 25,075,155.94
  5. Step 5: Solve for x
    x = 25,075,155.94/5,790.56
  6. Step 6: Final answer
    x = 4,330.35

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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.