Home / 5,216.14-7,197.60-2,977.90

Finding the Fourth Proportional to 5,216.14, 7,197.60 and 2,977.90

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Solution

The fourth proportional to 5,216.14, 7,197.60 and 2,977.90 is: 4,109.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.14 : 7,197.60 = 2,977.90 : x
  2. Step 2: Convert to fraction form
    5,216.14/7,197.60 = 2,977.90/x
  3. Step 3: Cross multiply
    5,216.14x = 7,197.60 × 2,977.90
  4. Step 4: Simplify right side
    5,216.14x = 21,433,733.04
  5. Step 5: Solve for x
    x = 21,433,733.04/5,216.14
  6. Step 6: Final answer
    x = 4,109.12

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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.