Home / 5,077-7,613.68-2,155.56

Finding the Fourth Proportional to 5,077, 7,613.68 and 2,155.56

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Solution

The fourth proportional to 5,077, 7,613.68 and 2,155.56 is: 3,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077 : 7,613.68 = 2,155.56 : x
  2. Step 2: Convert to fraction form
    5,077/7,613.68 = 2,155.56/x
  3. Step 3: Cross multiply
    5,077x = 7,613.68 × 2,155.56
  4. Step 4: Simplify right side
    5,077x = 16,411,744.06
  5. Step 5: Solve for x
    x = 16,411,744.06/5,077
  6. Step 6: Final answer
    x = 3,232.57

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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.