Home / 5,765.93-7,953.28-3,997.20

Finding the Fourth Proportional to 5,765.93, 7,953.28 and 3,997.20

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Solution

The fourth proportional to 5,765.93, 7,953.28 and 3,997.20 is: 5,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.93 : 7,953.28 = 3,997.20 : x
  2. Step 2: Convert to fraction form
    5,765.93/7,953.28 = 3,997.20/x
  3. Step 3: Cross multiply
    5,765.93x = 7,953.28 × 3,997.20
  4. Step 4: Simplify right side
    5,765.93x = 31,790,850.82
  5. Step 5: Solve for x
    x = 31,790,850.82/5,765.93
  6. Step 6: Final answer
    x = 5,513.57

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1.5x scale

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.