Home / 7,765.42-10,716.20-4,228.54

Finding the Fourth Proportional to 7,765.42, 10,716.20 and 4,228.54

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Solution

The fourth proportional to 7,765.42, 10,716.20 and 4,228.54 is: 5,835.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.42 : 10,716.20 = 4,228.54 : x
  2. Step 2: Convert to fraction form
    7,765.42/10,716.20 = 4,228.54/x
  3. Step 3: Cross multiply
    7,765.42x = 10,716.20 × 4,228.54
  4. Step 4: Simplify right side
    7,765.42x = 45,313,880.35
  5. Step 5: Solve for x
    x = 45,313,880.35/7,765.42
  6. Step 6: Final answer
    x = 5,835.34

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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.