Home / 5,620.55-7,756.79-3,103.14

Finding the Fourth Proportional to 5,620.55, 7,756.79 and 3,103.14

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Solution

The fourth proportional to 5,620.55, 7,756.79 and 3,103.14 is: 4,282.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.55 : 7,756.79 = 3,103.14 : x
  2. Step 2: Convert to fraction form
    5,620.55/7,756.79 = 3,103.14/x
  3. Step 3: Cross multiply
    5,620.55x = 7,756.79 × 3,103.14
  4. Step 4: Simplify right side
    5,620.55x = 24,070,409.20
  5. Step 5: Solve for x
    x = 24,070,409.20/5,620.55
  6. Step 6: Final answer
    x = 4,282.57

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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.