Home / 7,765.75-10,716.63-4,228.96

Finding the Fourth Proportional to 7,765.75, 10,716.63 and 4,228.96

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Solution

The fourth proportional to 7,765.75, 10,716.63 and 4,228.96 is: 5,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.75 : 10,716.63 = 4,228.96 : x
  2. Step 2: Convert to fraction form
    7,765.75/10,716.63 = 4,228.96/x
  3. Step 3: Cross multiply
    7,765.75x = 10,716.63 × 4,228.96
  4. Step 4: Simplify right side
    7,765.75x = 45,320,199.60
  5. Step 5: Solve for x
    x = 45,320,199.60/7,765.75
  6. Step 6: Final answer
    x = 5,835.91

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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.