Home / 5,620.25-7,756.70-3,527.21

Finding the Fourth Proportional to 5,620.25, 7,756.70 and 3,527.21

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Solution

The fourth proportional to 5,620.25, 7,756.70 and 3,527.21 is: 4,868.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.25 : 7,756.70 = 3,527.21 : x
  2. Step 2: Convert to fraction form
    5,620.25/7,756.70 = 3,527.21/x
  3. Step 3: Cross multiply
    5,620.25x = 7,756.70 × 3,527.21
  4. Step 4: Simplify right side
    5,620.25x = 27,359,511.56
  5. Step 5: Solve for x
    x = 27,359,511.56/5,620.25
  6. Step 6: Final answer
    x = 4,868.02

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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.