Home / 5,716.82-7,885.68-3,923.48

Finding the Fourth Proportional to 5,716.82, 7,885.68 and 3,923.48

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Solution

The fourth proportional to 5,716.82, 7,885.68 and 3,923.48 is: 5,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.82 : 7,885.68 = 3,923.48 : x
  2. Step 2: Convert to fraction form
    5,716.82/7,885.68 = 3,923.48/x
  3. Step 3: Cross multiply
    5,716.82x = 7,885.68 × 3,923.48
  4. Step 4: Simplify right side
    5,716.82x = 30,939,307.77
  5. Step 5: Solve for x
    x = 30,939,307.77/5,716.82
  6. Step 6: Final answer
    x = 5,411.98

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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.